Lumbung Pustaka UNY: No conditions. Results ordered -Date Deposited. 2023-06-06T03:29:24ZEPrintshttp://eprints.uny.ac.id/apw_template/images/sitelogo.pnghttp://eprints.uny.ac.id/2015-07-15T21:47:31Z2015-07-15T21:47:31Zhttp://eprints.uny.ac.id/id/eprint/23644This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236442015-07-15T21:47:31ZTHE METHODS OF VERTEX DISCRIMINANT MULTICATEGORY ANALYSIS WITH BOOTSTRAP APPLICATIONUnderdeveloped district is the district that has less developed community and region compare with the other areas in the national scale base on economical category, society, human resources, infrastructure, financial capacity, accessibility, and regional characteristics. It is not easy in classification of underdeveloped district that involves many variables and the number of observations by multicategory cases. Sometimes the data used does not fill the double normal assumption and the group of variance-covariance matrix is not a homogeneous. Verteks Discriminant Analysis (VDA) is the method of the newest multicategories classification which can handle high-dimensional data. In this research, the significance testing of the function of vertex discriminant is done by using a bootstrap approach to determine the significantly variables. Through simultaneous confidence intervals of T^2-Hotelling, based on the results of analysis show that from the 27 predictor variables used, all significant variables have the real effect in determining the status of underdeveloped district. The accuracy of the classification that is obtained from the vertex discriminant function is about 94.44% for data training and 72.22% for data testing.
Keywords: underdeveloped district, VDA, bootstrap, simultaneous confidence interval. Warnida Lena. I Made Sumertajaya. Bagus Sartono2015-07-15T21:45:10Z2015-07-15T21:45:10Zhttp://eprints.uny.ac.id/id/eprint/23643This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236432015-07-15T21:45:10ZALTERNATIVE DETERMINANT VARIABLES IN URBAN/RURAL VILLAGE CLASSIFICATION IN INDONESIAClassification of “kelurahan” and rural area into urban/rural class basically meant to form a layer (stratum) were used in the survey sampling techniques. With the status of urban and rural areas, the sample can represent the entire population correctly. Proper selection of variables could distinguish village into urban and rural class.
The purpose of this study was to provide an alternative selection of the most influential variables to determine the classification of villages in Indonesia with a mix method of bootstrap and binary logistic regression. The data used in this case is data Potensi Desa (PODES) 2011 which conducted by Badan Pusat Statistik. The methods used in this study are binary logistic regression and bootstrap. Logistic regression is one method of non-parametric regression where the response variable is categorical data. This method can also be used for data classification. Bootstrap, is known as one of the data simulation method, intended to simplify the inferential statistical analysis but produces a more robust analysis.
From previous studies showed that the variable density of population, the number of farm households, and the presence of the primary facility is the most influential variables in the classification of villages in Indonesia. From the previous studies also can be concluded that the bootstrap approach give small mistake of goodness in variance covariance matrix. The more bootstrap replication is used, the more robust the resulting analysis. The results showed that the presence of variable existence of Junior High School and hotels can be removed from the model without effecting goodness of fit of the model. The addition of new variables, existence of the internet cafe and bank is able to produce more powerful model for classification of the village.
Keywords: bootstrap, binary logistic regression, urban/rural village classification. Shafa Rosea Surbakti. Erfiani. Bagus Sartono2015-07-15T21:42:43Z2015-07-15T21:42:43Zhttp://eprints.uny.ac.id/id/eprint/23642This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236422015-07-15T21:42:43ZA STUDY OF ARIMA AND GARCH MODELS TO FORECAST CRUDE PALM OIL (CPO) EXPORT IN INDONESIAIndonesia is the biggest exporter Crude Palm Oil (CPO) country in the world. In 2013, export of Indonesian CPO reach $ 15.84 billion. CPO is important for various things, such as cooking oil, vegetable fat for milk and ice cream, raw materials of soap or cosmetics industry, or alternative fuels. The export of CPO is very important for the national economic development since it contributed significantly to the trade balance of Indonesia. Therefore, in order to support the government in making the right policy, forecasting export of CPO is necessary.
In this study, a series of CPO export data was analyzed using time series analysis and forecasting techniques. Two classes of models were investigated, namely ARIMA models and GARCH models, and the comparison of the models was reviewed. The data used in this study were monthly export registration data, available at various ports for export across Indonesia from 1996 to 2013.
The results showed that the first model was suitable for time series data with constant variance and hence if the problem of variance heterogeneity existed in the data, then a transformation to the data was required. The second model, on the other hand, was suitable for time series data having serious problems with heterogeneity of variance. However, in this study it was shown that a simple transformation of ARIMA models has fitted the data properly and could overcome the heterogeneity of variance problems.
Key words: CPO, ARIMA, log transformation, GARCH, forecasting. Sapto Rakhmawan.. Khairil Anwar Notodiputro. I Made Sumertajaya2015-07-15T21:40:30Z2015-07-15T21:40:30Zhttp://eprints.uny.ac.id/id/eprint/23641This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236412015-07-15T21:40:30ZAUTOLOGISTICS MODELS FOR MODELLING AND MAPPING INFANT MORTALITY IN INDONESIAAccording to Indonesia Demographic and Health Survey (IDHS) data, the highest child mortality occurred during the first year of age of infant. Infant mortality is an important indicator that must to be monitored seriously. The mortality is associated with several determinants, such as the infant’s characteristics, maternal and fertility factors, housing condition, and also geographical area. The aim of this research is to develop models that can be used to explain the effects of explanatory variables on infant mortality in Indonesia. It is also the aim of this research to develop a thematic map describing the distribution pattern of infant mortality probabilities at district level across the country. The response variable is a binary categorical variable with two outcomes, success and failure. The outcome is success if the infant died before achieving one year of age, and failed if the infant is still alive after one year of age. Modeling is using Logistic Regression model and Autologistics Regression model. The results showed that the Autologistics Regression model fitted the data reasonably well, all of the explanatory variable affect infant mortality, except infant’s sex. The results also showed that the probabiity of infant mortality was higher in Kalimantan island and Papua island.
Keyword : Infant, mortality, autologistic, binary, IDHS. Ray Sastri. Khairil Anwar Notodiputro. Indahwati2015-07-15T21:38:04Z2015-07-15T21:38:04Zhttp://eprints.uny.ac.id/id/eprint/23640This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236402015-07-15T21:38:04ZCLUSTERING DISTRICTS BASED ON INFLUENCED FACTORS OF CHILD UNDERNUTRITION (STUNTING)One indicator of undernutrition problems is stunting. In Indonesia, the prevalence of stunting of under 5 years children has increased from 35.6% (2010) to 37.2% (2013) and there are differences among provinces. These disparities are likely to be greater when the level is seen in smaller areas such as inter regencies/cities. The purpose of this study. is to group the regencies/cities based on stunting factors.
Prevalence factors of stunting of children under 5 years have different measurement scale (numerical and categorical). Two step cluster method is a method that is designed to handle a large number of objects, especially on the objects that have the problem of continuous and categorical variables. This method also assumes independent variables involved.
Based on BIC values, it can be concluded that the optimal number of cluster is 2, with cluster quality is fair. The first clusters consist of 223 counties and cities, while the second comprises 272 ones. In addition, there are two outliers, District Ndunga and District Lanny Jaya located in the Province of Papua. The first cluster has average value greater than the national average in the socioeconomics and child diet, in the other hand, the second cluster has average value greater than the national average in mother enviromental and health care, and the outliers has an average above the national average for all variables except on expenditure per capita, the average member of the household, and calorie consumption.
Keywords: clustering, malnutrition, stunting, two step cluster method. Nurul Istiqomah. Hari Wijayanto. Farit M. Afendi2015-07-15T21:34:57Z2015-07-15T21:34:57Zhttp://eprints.uny.ac.id/id/eprint/23639This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236392015-07-15T21:34:57ZRICE PRICE MODELING IN SIX PROVINCE OF JAVA ISLAND USING VARMAX MODELRice is an important food commodity in Indonesia because it is not only a main food but also social commodity, and has influence in politic stabilities and economic growth in Indonesia. Based on this condition is showed that everything about rice especially rice price has social economic impact in Indonesia. Factors that influence the domestic rice price in Indonesia are real exchange value, domestic corn price, and basic rice price This research aims to create models of rice price monthly data from six province in Java to real exchange value from 2007 until 2014 by using multivariate time series modeling approach with covariate, that is VARMAX (Vector ARIMAX) model. The results show that rice price in West Java, DI Yogyakarta, and Banten are influenced by rice price in DKI Jakarta, Central Java, and East Java, and real exchange value. Based on RMSE value, the best model is using VECMX(2,1) model.
Keywords : ARIMA, VARMA, VARMAX. Nurita Andayani. I Made Sumertajaya. Budi Nurani Ruchjana. Muhammad Nur Aidi2015-07-15T21:31:54Z2015-07-15T21:31:54Zhttp://eprints.uny.ac.id/id/eprint/23638This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236382015-07-15T21:31:54ZESTIMATION OF LOGISTIC SMOOTH TRANSITION AUTOREGRESSIVE MODEL USING GENETIC ALGORITHMTime series data not only create linear model but also nonlinear model, especially in the economic. One of nonlinear model in time series is smooth transition autoregressive (STAR). STAR model is the development of Self-Exciting Autoregressive (SETAR) model with two regimes. STAR smoothen the SETAR two regimes with a transition function and one of that is logistic function which then form LSTAR models (logistic smooth transition autoregressive). After, determining order p and delay d, estimation of π1, π2, γ and c using genetic algotihm. By GA (genetic algorithm), that is a technique to search for solutions with various combinations of genes in a chromosome in order to obtain a global optimum solution, . Evaluation of chromosomes carried by the fitness function through procedures such as selection, crossover and mutation. Application of genetic algorithm (GA) will be conducted to identify the data model of LSTAR on stock return are included in the LQ 45 index that show LSTAR with GA better than AR model.
Key words: genetic algorithm, nonlinear, stock return, LSTAR. Meiliyani Siringoringo. Irhamah2015-07-15T21:29:16Z2015-07-15T21:29:16Zhttp://eprints.uny.ac.id/id/eprint/23637This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236372015-07-15T21:29:16ZMODELLING THE AVERAGE SCORES OF NATIONAL EXAMINATION IN WEST JAVAFormal education in Indonesia is commonly divided into stages such as preschool, primary school (SD), Secondary School (SMP-SMA), and universities/colleges. Indonesian government has been taking serious efforts on how to improve the quality of education in Indonesia. The roadmap for continous improvement of education quality can be designed based on the results of National Examination (UN) taken regularly by high school students.
This research was aimed at exploring informations on how the scores of UN can be linked with other explanatory variables. A panel data which consists of average scores of UN for all public senior high schools (SMA Negeri) in West Java Provinces during 2011-2013 and other related variables such as total scores of accreditation, regional domestic product, human development index, scores of school’s facilities and its infrastructure, scores of school’s educators, average scores of final school exams, were used in this research. The average scores of UN in this case were dependent on variations between high schools and time periods as well as other explanatory variables in which the effects were either fixed or random. The data of this research was modelled with linear mixed models and using the Generalized Estimating Equation (GEE) approach. Both linear mixed models and GEE have been commonly used to analyse the panel data.
This paper showed that the GEE provided a model of better performance than the linear mixed models in explaining the variability of the response variable which was the average scores of UN. The GEE also showed significant correlation between explanatory variables and the response.
Key words: fixed effects, GEE, linear mixed model, national examination, random effects.. Karin Amelia Safitri. Khairil Anwar Notodiputro. Anang Kurnia2015-07-15T21:25:59Z2015-07-15T21:25:59Zhttp://eprints.uny.ac.id/id/eprint/23636This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236362015-07-15T21:25:59ZCORRESPONDENCE ANALYSIS BETWEEN THE PLACE WHERE THE CRIMES OCCUR AND THE VARIETY OF CRIMES IN INDONESIANDuring the upcoming Asia Pacific Free Trade Era, especially in this year of ASEAN Economic Community, the number of criminality is increasing significantly. Those include the life threatening action as well as breaking the law and/or norm where many people are the victims. The meaning of “criminality” is derived from the basic word “crime” which means the violation of non-written norm in sociality from which the criminal could be punished socially. Furthermore, when those are written literally legal, they have the power to sentence certain violation. Nevertheless, the violations of norm or what we consider as crime, could vary depend on the location where it takes place. In some extend, the norm would never be the same in every place. That result that some violations can be considered as criminal in some places but yet categorized as criminal on other places. Several studies have studied on these issues. They suggest that there is relation insignificantly on how the parameter of places, variety, and when it takes place affect others. This paper discusses the example on those 2 aspects and tries to find their relation using correspondence analysis. In summary, by considering a certain area in Indonesian, there are more significant number change on the correspondence on the relation between those 3 issues
Key words: Criminality, Correspondence Analysis, Criminal Variation. Hery Tri Sutanto2015-07-15T21:21:56Z2015-07-15T21:21:56Zhttp://eprints.uny.ac.id/id/eprint/23635This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236352015-07-15T21:21:56ZNEGATIVE BINOMIAL REGRESSION METHODS TO ANALYZE FACTORS AFFECTING CHILD MORTALITY RATES IN WEST JAVAData on the number of child mortality cases are discrete data (count) which are usually analyzed with Poisson regression. The characteristics of the Poisson regression mean and variance must be the same, whereas in fact the count data is often becoming variance greater than the mean, which is often referred to overdispersion. To deal with the problem over dispersion, modelling can be done with Negative Binomial Regression because it does not require the mean value equal to the value of variance. Model Negative Binomial produces Deviance/Degree Freely value of 1.6347 and Pearson Chi-Square of 1.4569. This value goes to 1, its means that overdispersion problem was sloved.
Key Word: child mortality rates; Negative Binomial Regression, overdisversion. Hadiyatul Fitriyah. Anang Kurnia. Farit M. Afendi2015-07-15T21:19:26Z2015-07-15T21:19:26Zhttp://eprints.uny.ac.id/id/eprint/23634This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236342015-07-15T21:19:26ZPROFILE ANALYSIS OF UNMET NEED FOR FAMILY PLANNING INDICATORS
USING SDKI AND SUSENAS DATA.Data requirements for government development programs, present in time series and small area estimation with good accuracy, is necessary to achieve the objectives of the program effectively and efficiently.
There is an indicators used by Indonesia government to measure the achievement of the population growth control by family planning. It is namely unmet need for family planning indicators. The indicator is obtained from the Indonesian Demographic and Health Survey (IDHS) conducted in 1987, 1991, 1994, 1997, 2002-2003, 2007 and 2012 by provincial level estimation. Noting the estimation period and the level of estimation, unmet need for family planning availability in annual period by regency/municipality level estimation is necessary for better monitoring the achievement of family planning programs.
Alternative fulfillment of the necessarily is unmet need for family planning estimation. In this research, the data estimation is done using fertility and family planning data which available in the National Socioeconomic Survey (Susenas). Susenas is an annual survey with regency/municipality level estimation. The profile analysis results of the data on IDHS and susenas 2012, can statistically prove the similarities of both data. Then based on the tests result, Susenas data conclude to be used for estimate indicator of unmet need for family planning by regency/ municipality level estimation.
Key words: Profile Analysis, Family Planning, SDKI, Susenas.. Din Nurika Agustina. Anang Kurnia. Anik Djuraidah2015-07-15T12:42:07Z2015-07-15T12:42:07Zhttp://eprints.uny.ac.id/id/eprint/23633This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236332015-07-15T12:42:07ZMULTIVARIATE ADAPTIVE REGRESSION SPLINE (MARS) FOR MODELLING OF CHILD LABOR IN JAKARTAA Child is defined as male or female under the age of 18 years unless under the law of maturity has been reached earlier. Based on data from the ILO, there were four million child labors in Indonesia in 2002. Jakarta as the capital city of Indonesia has a high economic growth in 2010 by reaching 6.51 percent (LKPJ 2010). Behind that growth, Jakarta has a problem of high number of child workers as well, which is about 93 571 children in 2010.
Some researchers often use regression analysis to determine the description of the factors that contribute to a response variable. Regression analysis has several assumptions that must be met, while research in the social subjects often violates those assumptions. To overcome this limitation required nonparametric method that is not tied to the assumption. One method is non-parametric regression Multivariate Adaptive Regression Spline (MARS). MARS method is an approach for nonparametric regression model that can accommodate multicollinearity in the model.
This study uses secondary data drawn from SUSENAS in 2013 in DKI Jakarta. Response variable used is the status of work in children aged 10-17 years, while the predictor variables are fifteen variables that represent the characteristics of children and household. Based on the results of processing with MARS, obtained models are affected by Status of Child’s Education, Child’s Education, Child Live with Parent, Education of Head of Household, and etc.
Key words: child labor, MARS, SUSENAS, Jakarta. Dimas Adiangga. Hari Wijayanto. Bagus Sartono2015-07-15T12:38:13Z2015-07-15T12:38:13Zhttp://eprints.uny.ac.id/id/eprint/23632This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236322015-07-15T12:38:13ZCLUSTERING RURAL DEVELOPMENT TYPOLOGY IN EAST JAVA PROVINCE USING LATENT CLASS ANALYSISTo deliver the sustained and equitable regional development in Indonesia, the government must understand the characteristics of each region based on its area features, therefore, the classification of rural area must be handled to increase the precision of the development program. Since the rural area has their own specific characteristics that may lead to its rural level, the classification must ensure that the development policy fit in each area.
In this paper, we try to classify the typology of rural development that measured based on the rural potential characteristics, education, and socioeconomic. We select villages in East Java province as a scope of research area since East Java was well-known as a center of agricultural in Java, however, in 2011-2014, according to BPS, the poverty rate put east Java in 15th position in the national poverty rate.
The classification uses latent class analysis, which models the data into particular statistical distribution to identify immeasurable cluster membership between subjects with observed categorical or continuous variables. The method was able to handle overlapping model data by setting different characteristics, and the modeling results can be tested its accuracy level. Expectation Maximization (EM) algorithm is used to estimate parameters of the latent class model. The research uses PODES 2011 dataset which contains characteristics and facilities information of 8502 villages.
The result showed that using latent class analysis generates five clusters of rural area development, while the current classification from Ministry of Home Affairs only uses three typologies of rural development. The research result was able to give more detail additional information of current three classifications by dividing its typology into several detail typology classifications.
Key words: Latent Class Analysis, Maximum Likelihood, Expectation Maximization Algorithm, Rural Development Typology. Desy Setiawati. Aji Hamim Wigena. Bagus Sartono2015-07-15T12:34:07Z2015-07-15T12:34:07Zhttp://eprints.uny.ac.id/id/eprint/23631This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236312015-07-15T12:34:07ZPRICE OF SUGAR MODELING AND FORECASTING BASED ON STIMA MODEL AND GSTIMA MODELSTIMA (space-time integrated moving average) model is a special form of Vector IMA model that combines the interdependence of time and location that is known by space-time model. STIMA model requires the same parameter values for all locations, so Generalized-STIMA (GSTIMA) model is developed to overcome this problem. This paper compares the implementation of two models in forecasting the price of sugar in capital provinces in Sumatra Island, Indonesia. The first step is model building for each model. This step is similar to Box-Jenkins’s procedure. It is begun with the determination of temporal order by using AICC, while spatial order is restricted on order 1, the parameter estimation uses nonlinear least square method that are minimized by a Gauss-Newton algorithm, and then diagnostic checking of white noise errors. The normalization of cross-correlation between the locations at the appropriate time lag is used as space weight. The last, the implementation of forecast is evaluated by using the Root Mean Square Error (RMSE) where the error is defined as the differences between the actual value and the forecast value. The implementation of STIMA model is better compared with GSTIMA model in forecasting the price of sugar, although STIMA model produces the same parameters for each location.
Key words: Space-time, STIMA, GSTIMA, Modeling, Forecasting.. Dania Siregar. M. Nur Aidi. I Made Sumertajaya2015-07-15T12:31:09Z2015-07-15T12:31:09Zhttp://eprints.uny.ac.id/id/eprint/23630This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/236302015-07-15T12:31:09ZMODELLING CASES OF LOW BIRTH-WEIGHT INFANTS WITH GENERALIZED LINEAR MIXED MODELLow Birth-Weight (LBW) is defined as a birth weight of a live-born infant of less than 2.500 grams regardless of gestational age. The causes of LBW cases can be grouped into two main causes: premature birth and case of small for gestational age (SGA). There are many risk factors that can induce directly or indirectly so that these causes may occur. Case of LBW is associated with infant mortality, infant morbidity, inhibited growth and slow cognitive development, also chronic diseases in later life.
To suppress rate of LBW first we must estimate the rate correctly. Data of LBW comes from Indonesian Health and Demographic Survey (IDHS) 2012 which is divided into 3 groups: written (measured accurately), recall (measured inaccurately) and not weighed (not measured). Published national rate of LBW is 7.3% with provincial rates fall between 4.7-15.7 %. The estimation came from only 2 former groups without consideration of assumed difference accuracy on second group.
To estimate the difference and the rate of the third group, Generalized Linear Mixed Model (GLMM) is used with live-born infants as observation units because observations from the same sampling unit tends to correlate due to multistage sampling design.
The result of the model at α = 0.05 is highly-significant, with fixed effect variables that are statistically significant to the case of LBW are Estimated Size, Preceding Interval, Pregnancy Complication, Mother’s Age, Province and Education. Higher portion of variance component is on the G-side as a result of multistage sampling, with Household level has highest within variance. On the R-side, recall group data has higher variance than written group. It is an indication of lower accuracy of the birth weight data on this group. Based on the model, estimation of LBW rate including not weighed group result 7.96% slightly higher than direct estimate.
Keywords: Low Birth-Weight, GLMM, Logistic Regression, IDHS 2012. Antonius Benny Setyawan. Khairil Anwar Notodiputro. Indahwati2015-07-10T21:05:25Z2015-07-10T21:05:25Zhttp://eprints.uny.ac.id/id/eprint/23325This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233252015-07-10T21:05:25ZACCURACY COMPARISON OF SIMPLE, SYSTEMATIC, AND STRATIFIED RANDOM SAMPLING FOR ESTIMATING POPULATION (MINIMARKET CASE IN INDONESIA)This paper aims to compare the accuracy of three methods of sampling, namely Simple Random Sampling (SRS), Systematic Random Sampling and Stratified Random Sampling. The data used as the simulation is data PODES 2011. So the data that is used as a parameter in this study are primary data in the form of data results PODES 2011 were rural / village with minimarket (RVM). The method of analysis is done in two stages. The first phase saw the condition of the minimarket population data as a basis for exploration. The second stage of the estimation simulate the total population and the variance by using simple random sampling, systematic random sampling, and stratified random sampling. The next stage of comparing the results of estimation of population parameters of the sampling methods to the total population of the minimarket PODES 2011. The results are reviewed based on the accuracy of each method. Stratified random sampling method (DKM as a base coating) with a sample size of 500 generate predicted values with the highest degree of accuracy compared with the SRS and systematic random sampling. Its bias value at 22 outlets, its standard error of 2606.2 outlets, and his MSE of 6.79254 million.
Keywords: accuracy, comparison, simple, systematic, stratified, random. Abadi Wibowo. Indahwati. I Made Sumertajaya. Erni Tri Astuti2015-07-10T21:00:49Z2015-07-10T21:00:49Zhttp://eprints.uny.ac.id/id/eprint/23324This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233242015-07-10T21:00:49ZSTUDY ON CALCULATION MODEL OF HEALTH INSURANCE PREMIUM FOR POOR FAMILYHealth is an important aspect in the life of society, the government should create an adequate health development as an improvement to the poor level of health of poor families over the years. In this paper studied how to calculate the cost of a hospital for the poor by using the actuarial approach. Actuarial approach that will be used is one of life insurance products, namely health insurance. The calculation of the amount of premium to be paid by users of health insurance is done by calculating the annual net premium is updated every year, and annual net premiums that are not updated. The age and gender will affect the value of the annual net premium. In addition, costs are categorized in the cost of health insurance as inpatient, outpatient costs, physician costs will affect the amount of premium to be paid.
Key words: poor families, health insurance, annual net premiums, health insurance costs.. Sukonofsukono@yahoo.com. Sudradjat. Riaman. Juliarti Donda2015-07-10T20:57:12Z2015-07-10T20:57:12Zhttp://eprints.uny.ac.id/id/eprint/23323This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233232015-07-10T20:57:12ZA SIMULTANEOUS STUDY OF POVERTY RATE , CHILD LABOR AND DROPOUT RATE IN INDONESIAPoverty is a major cause of child labor and dropout case. Poor families usually encourage their children to work looking for additional income as a way to survive. Based on previous research there is a causal relationship of poverty rate, number of child labor and dropout rate. Characteristics of poverty rate, child labor and dropout rate can be assessed from the demographic characteristics and socioeconomic characteristics are interrelated.
This study aims to model the interdependent relationship of poverty rate, child labor and dropout rate in Indonesia and factors that influence them. One appropriate method is used to model the interdependent relationship of these three variables is the simultaneous equation models. From the results of the identification of the model equations were used the method Three Stage Least Square (3SLS) with 3 equations. The number of variables is 11 pieces consist of 3 endogenous variables and 8 predetermined variables.
The result showed that child labor in Indonesia is influenced significantly by poverty rate, dropout rate, and percentage of household heads who worked in agriculture. Poverty rate in Indonesia is influenced significantly number of child labor, dropout rate, and percentage of household heads who worked in agriculture. While dropout rate is influenced significantly by number of child labor, percentage of household with members more than six, percentage of household heads who did not complete primary school and percentage of household head who completed basic education. R-square of system is about 66.28%, meaning that total diversity of poverty rate, number of child labor and dropout rate in Indonesia in 2013 which can be explained by the explanatory variables in the system about 66.28%.
Keywords: 3 bhaSLS, simultaneous equation models, poverty, child labor, dropout.. Kusumapuri. I Made Sumertajaya. Farit M Afendi2015-07-10T20:53:42Z2015-07-10T20:53:42Zhttp://eprints.uny.ac.id/id/eprint/23322This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233222015-07-10T20:53:42ZBUILDING A MODEL TO PREDICT SCHOOL ACCREDITATION RANK USING BOOSTED CLASSIFICATION TREEEducation has a key role to make a better life. The Education for All (EFA) is a global movement led by UNESCO, aiming to provide good basic education for all children, youths and adults. Indonesian government has committed to improve the education quality as stated in law on national education system (Law No. 20/2003). School accreditation rank which is issued by National Accreditation Board for School/Madrasah (BAN S/M) is depiction of education quality provided by school. However the number of accredited school has not met the target yet so that the government faces difficulty in the planning of budget and actions. The prediction of school classification based on accreditation rank to the un-accredited schools, therefore, has important role as reference to improve quality of education.
In recent years the introduction of aggregation methods led to many new techniques within the field of prediction and classification. Boosting is one of the widely used ensemble for classification with a goal of improving the accuracy of classifier. The objective of this study is to predict school accreditation rank using boosted classification tree compared to single tree utilizing the education database. It is showed that the accuracy of prediction is improved by use of boosting method. Comparisons between the methods are based on misclassification rates as well as criteria that take ordinality into account, like mean absolute error, mean square error and Kendall’s association measures.
Key words: boosting, classification tree, school accreditation rank. Yesi Nindahayati, Hari Wijayanto. Bagus Sartono2015-07-10T20:51:17Z2015-07-10T20:51:17Zhttp://eprints.uny.ac.id/id/eprint/23321This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233212015-07-10T20:51:17ZSIMULTANEOUS EQUATIONS MODELLING USING 2SLS AND 3SLS METHODS
FOR FISHERMEN TERM OF TRADE OF INDONESIAAfter being set as one of national target, Fishermen Term of Trade (NTN) has become a vital indicator for fisherman's welfare. For years, NTN is calculated based on the price of goods and services both in terms of production, costs and household consumption. While cost of consumption is based on actual data which was collected every month, the production refers to the volume of the base year, so it is less accurate in describing the actual condition. At the other side, dealing with State Budget planning, government needs to know how macroeconomic assumptions affect fisherman welfare. Therefore, the purpose of this study is to find a comprehensive model that simultaneously links the production side and economic indicator to predict NTN. Another focus is to investigate which estimation method is better, between Two Stage Least Squares (2SLS), as a single equation approach, and Three Stage Least Squares (3SLS), as a system approach. The study of Indonesian data from January 2008 – December 2012 shows that there are significant simultaneous relationships among production, macro assumption and NTN. The 3SLS gives better parameter estimates since it has less Mean Square Error (MSE) with R-sq=62.75%. But, in order to fit the NTN, the 2SLS gives a better prediction.
Keywords: fishermen terms of trade, simultaneous model, 2SLS, 3SLS. Widyawan Candra Yunianto. I Made Sumertajaya2015-07-10T12:31:45Z2015-07-10T12:31:45Zhttp://eprints.uny.ac.id/id/eprint/23320This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233202015-07-10T12:31:45ZTHE NUMERICAL SOLUTION OF FREE CONVECTION FLOW OF VISCOELASTIC FLUID PAST OVER A SPHEREFree convection flow is heat transfer on fluid caused by buoyancy forces because of density difference. We further use The boundary layer theory to obtain governing equations. The governing equations are further transformed into non-dimensional and then transformed into the non-similar governing equation. The non-similar governing equations are solved numerically by using explicit finite difference method. The numerical results are analyzed correlation viscoelastic and Prandtl number with velocity and temperature profile. Based on the numerical results of free convection flow of viscoelastic fluid past over a sphere, we obtained that the velocity profile decreases when we apply the increasing in the values of viscoelastic and Prandtl number. The temperature profiles increases with the increasing in the values of viscoelastic, but decreases when the values of Prandtl number increases.
Keywords: Navier-Stokes, Explicit Finite Difference Method, Viscoelastic, Prandtl number Mathematics Subject Classification: 65C20, 65M06, 76A10, 76D05, 76D10. Wayan Rumite. Basuki Widodo. Chairul Imron2015-07-10T12:27:44Z2015-07-10T12:27:44Zhttp://eprints.uny.ac.id/id/eprint/23319This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233192015-07-10T12:27:44ZTHE CHARACTERISTICS STUDY OF SOLVING VARIANTS OF VEHICLE ROUTING PROBLEM AND ITS APPLICATION ON DISTRIBUTION PROBLEMVehicle Routing Problem (VRP) is one of the most challenging problems in combinatorial optimization. Objective of VRP is to find minimum length route starts and ends in a depot. There are some additional constraints such as more than one depot, service time, time window, capacity of vehicle, and many more. These are cause of VRP variants. Vehicle Routing Problem with Time Windows (VRPTW) is a variant of VRP with some additional constrains, that are number of requests may not exceed the vehicle capacity, as well as travel time and service time may not exceed the time window. Multi Depot Vehicle Routing Problem (MDVRP) has number of depots serving all customers, a number of vehicles distributing goods to customers with a minimum distance of distribution route without exceeding the capacity of the vehicle.
Many researches have presented algorithms to solve VRPTW and MDVRP. This article discusses solution characteristics of VRPTW and MDVRP algorithms, and their performance. VRPTW algorithms reviewed are Tabu Search, Clarke and Wright, Nearest Insertion Heuristics, Harmony Search, Simulated Annealing, and Improved Ant Colony System algorithm. Performance of MDVRP algorithms studied are Self-developed Algorithm, Upper Bound, Clarke and Wright, Ant Colony Optimization, and Genetic Algorithm. Each algorithm is studied on its performance, process, advantages, and disadvantages.
This article presents example of distribution problem in VRPTW and MDVRP, based on characteristic of the real problem. A computer program created using Delphi is implemented for VRPTW and MDVRP, to solve distribution problem for any number of vehicles and customer locations.
Keywords: VRPTW, MDVRP, Distribution problem. Sapti Wahyuningsih. Darmawan Satyanandadarmawan.satyananda.fmipa@um.ac.id2015-07-10T12:24:06Z2015-07-10T12:24:06Zhttp://eprints.uny.ac.id/id/eprint/23318This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233182015-07-10T12:24:06ZASYMMETRIES MODEL OF VOLATILITY RETURN INDONESIAN SHARIA STOCK INDEX WITH EXPONENTIAL GENERALIZED AUTOREGRESSIVE CONDITIONAL HETEROSCEDASTICITYStocks are securities which a sign of ownership a person or entity to an enterprise. Since the establishment of IDX in 1977, stock traded based conventional, but in 2000 a new index based on sharia, Jakarta Islamic Index (JII) consists of 30 issuers listed on IDX. In 2011 launched another sharia index, namely the Indonesian Sharia Stock Index (ISSI), which consists of 322 of the 501 issuers listed on IDX. ISSI is a row of random variables in the form of time series data. Financial data such as ISSI have two important properties of time series data, namely heteroscedasticity and volatility. Heteroscedasticity is the error variance changes happen all the time. Volatility is a measure for variation of stock price over time. A good model for data with heteroscedasticity and volatility is GARCH (Bollerslev,1986). Volatility is influenced by many things, therefore stock is often called investment with leverage effect. This is the model that cause the stock price is not symmetrical. According to Chen (2005) and Berument (2001), a good model for the leverage effect is EGARCH model. In this study, the data will be used Indonesia Sharia Stock Index which have the nature of heteroscedasticity and asymmetric. Then the data model with asymmetric EGARCH models. Then predict the stock price in the next period. Furthermore perform simulations based on eviews and EGARCH function matlab toolbox.
Key words: EGARCH, Indonesian Sharia Stock Index. Retno Tri Vulandari. Endah Rokhmati2015-07-10T12:21:36Z2015-07-10T12:21:36Zhttp://eprints.uny.ac.id/id/eprint/23317This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233172015-07-10T12:21:36ZCART BAGGING FOR CLASSIFICATION OF CHILD LABOR’S CASE IN CENTRAL SULAWESI PROVINCEClassification is statistical method that used to classify the systematical data. In statistics, there are several classification methods, one of the methods is CART (Classification and Regression Trees) that resulted classification trees model. CART has several advantages related with the model and the classification result, although it has a weakness on stability model that resulted. To solve this weakness, bagging (bootstrap aggregating) technique was applied on CART method to increase the stability and classification accuracy, that called CART bagging method. In this research, CART bagging is using to classify child labor’s case in Central Sulawesi province. Beside that, this research also aims to determine the influence factors of child labor’s case and the most dominant factor. The result shows that child get involved in work activity influenced by child’s school participation, child’s age, child’s sex, number of household member, income per capita and head of household’s education level, with child’s school participation become the most dominant factor of child labor’s case in Central Sulawesi Province. Classification accuracy used to see how good the classification model. Bagging technique on CART resulted higher classification accuracy.
Keywords: classification, CART bagging, child labor, classification accuracy.. Mohammad Fajri. Muhammad Mashuri2015-07-10T04:31:53Z2015-07-10T04:31:53Zhttp://eprints.uny.ac.id/id/eprint/23300This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/233002015-07-10T04:31:53ZCOMPARISON WILLIAMS METHOD AND BETA-BINOMIAL IN OVERDISPERSION OF LOGISTIC REGRESSION: A CASE OF INDONESIA GENERAL ELECTION DATA 2014Democratization in Indonesia so far has resulted in increasingly rational voters. The rational voters in each district or city of Indonesia are varied due to many factors. The system of election in Indonesia today is direct election system in which every citizen has freedom to vote the preferred candidates or even not to vote at all. There were 12 political parties participated in the legislative election in 2014, whereas in the presidential election there were two pairs of president and vice-president candidates competed.
This research was aimed to obtain models, at the district level, that properly relate the votes were gained by the two candidates and other variables such as human development index, the results of legislative election as specially coalition of political parties voting results. Since the vote data was binary and showed over-dispersion then a logistics model accounting for over-dispersion was utilized. An over-dispersion problem is present whenever observations which might be expected to correspond to the binomial distribution may have greater variance than ni πi (1-πi).In this research the William’s method and beta-binomial regression were used to overcome the problem. The result showed that the Williams method provided better estimates when was compared to beta-binomial regression.
keyword: Logistic regression, Overdispersion, Williams’Method, Beta-Binomial Regression, General Election. Firman Hidayat. Khairil Anwar Notodiputro. Bagus Sartono2015-07-10T04:25:34Z2015-07-10T04:25:34Zhttp://eprints.uny.ac.id/id/eprint/23298This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232982015-07-10T04:25:34ZWATERMELON PLANT CLASSIFICATION BASED ON SHAPE AND TEXTURE FEATURE LEAF USING SUPPORT VECTOR MACHINE (SVM)Nowadays, some efforts are used to increase results of agriculture production. One of those is utilizing herbisides to exterminate the weeds. However, there are some of the weeds having resemblance with the plant, with the result that we need to classify the plant and the weeds before utilizing herbisides as an extermination weeds. In this paper, we use watermelon plant classification as case study. The recognition of the plant owned by the similarity of leaves of these plants are divided into three phases. At the first phase we perform preprocessing to convert the RGB image into a grayscale images. Further, the grayscale images are changed into segmentation of edge detection using Canny operator. In the second, we use feature extraction to retrieve important informations for the recognition of those leaves. The last phase we classify that leaves as watermelon plants or weeds using Support Vector Machine (SVM) algorithm. The results of early trials indicate that this method has an accuracy of 91,3%.
Keywords : image, leaf, edge detection, feature extraction, and plant classification esults of early trials. Etriana Meirista. Imam Mukhlash. Budi Setiyono2015-07-10T04:20:26Z2015-07-10T04:20:26Zhttp://eprints.uny.ac.id/id/eprint/23296This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232962015-07-10T04:20:26ZSPATIAL GINI DECOMPOSISTION FOR THE ISLAND OF JAVA FROM 2007 TO 2012Spatial issues now become the focus of some policy makers, particularly in the government. For example, if there are problems of inequality, it should be seen the association among regions, whether a region with low inequality is influenced by its neighboring regions that also have low inequality, or vice versa. Rey and Smith (2013) found a Gini coefficient calculation technique that is decomposed to obtain an idea of the magnitude of inequality in the region, and how to measure (test) spatial autocorrelation that occurs among neighboring sub-regions within the region.
This research aims to (1) calculate the level of regional expenditure inequality of each province on the island of Java; (2) find the province having greatest contribution to expenditure inequality on the Island of Java; and (3) determine the relationship between the inequality of the province referred to in point 2 and its spatial autocorrelation of regional expenditure. After processing using spatial Gini decomposition method, the results show that (1) the level of regional expenditure inequality of each province can be seen in Table 1; (2) province of Banten was the province having greatest contribution to regional expenditure inequality on the Island of Java, (3) eventhough Banten is the province which was almost always the highest in regional expenditure inequality in Java, there is no indication of significant spatial autocorrelation of regional expenditure.
Keywords: regional expenditure inequality, spatial autocorrelation, spatial gini coefficient, spatial weight. Bony Parulian Josaphat. Robert Kurniawan2015-07-10T04:17:23Z2015-07-10T04:17:23Zhttp://eprints.uny.ac.id/id/eprint/23292This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232922015-07-10T04:17:23ZMATH PROBLEM SOLVING SKILLS PRIMARY SCHOOL STUDENTS IN MATHEMATICS COMPETITION THE UNIVERSITY DAYANU IKHSANUDDIN BAUBAUThe mathematical problem solving skill is an effort to find solution of mathematical problem that is faced by students. In problem solving process, the students leadtheir entirecapability. The competencies which are used in problem solving namely rationality, creativity, and other thinking abilities. Problem solving needs conceptual understanding ability (conceptual knowledge), ability to do inter-conceptual relationship (principle and procedure), accuracy, and student’s mental readiness. Problem solving is an important aspect in learning mathematics. A student called mastering certain mathematics lesson if he/she has a problem solving skillwhich is contained in the lesson. Problem solving skill is necessary to be implemented to the student’s competency from the elementary school. Problem solving skill is need to be trained and be accustomed to the student as early as possible.It is significant because the students haveskill to solve mathematical problem when they have many experiences. The experience of mathematical problem solving will be provision for facing daily life problems. Problem solving skill relates to lessons in curriculum. It is in order to see how far the student’s skill in calculating, remembering, and applying mathematical formula relevantly. The results of mathematical problem solving ability of primary school students in the category which is equal to 56.50% of the 915 questions. Problems that can be completed correctly that as many as 517 questions that consists of 392 questions form Algebra, 93 about the form of Geometry, and Algebra 32 question form with the average time required for 51.1 minutes. In solving the problem, students will have a motivation to use continuously their knowledgeif the result that obtained is a solution from the problem they faced.
Keywords: problem solving skill, mathematics school.. Anwar. Sardin2015-07-10T03:48:35Z2015-07-10T03:48:35Zhttp://eprints.uny.ac.id/id/eprint/23284This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232842015-07-10T03:48:35ZPATH PLANNING OF UNMANNED AERIAL VEHICLE USING DUBINS
GEOMETRY WITH AN OBSTACLEMotivation: Unmanned Aerial Vehicles (UAV) is an aircraft that is controlled without the use of human beings crew. One of main problem of Unmanned Aerial Vehicle’s (UAV) flight is guide. UAV need a guide who can direct the movement of aircraft to arrive at the destination, so it takes planning trajectory (path planning) appropriate to the aircraft can be controlled in accordance with the objectives and can pass the desired trajectory. Given two points on a 2-dimensional plane, the two points are coordinates the initial and final coordinates to be taken by UAV. And between the two points is given a obstacle in the form circle. Planning algorithm trajectory using Dubins geometry. Results obtained from this paper are path planning to produce path between two points with the shortest distance and shortest time. The first track is the track without a obstacle and the second path is the path to the obstacle. Differences in distance on the second track is provided.. Ahmad Zaenal Arifin. Subchansubchan@matematika.its.ac.id2015-07-10T03:34:15Z2015-07-10T03:34:15Zhttp://eprints.uny.ac.id/id/eprint/23274This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232742015-07-10T03:34:15ZRECOVERY OF THREE-PARAMETER LOGISTIC AND MULTIPLE-CHOICE ITEM CHARACTERISTIC CURVE: A SIMULATION STUDY IN MATHEMATICS TESTINGThis simulation study investigated the recovery item and person parameters of three-parameter logistic and multiple-choice models for mathematics testing in selected-response format test. A potential problem with such the study is the accuracy of simultaneous estimation of item and person parameters in item response theory.
Item responses were simulated using three-parameter logistic and multiple-choice models. Samples of 400, 1000, and 3000 simulated examinees and tests lengths of 20, 40, and 60 were generated. The response patterns according to models was run in PARSCALE. The root mean squared error between recovered and actual item characteristic curves served as the principal measure of estimation accuracy for items. The data were analyzed using the fixed effect MANOVA on RMSE ability, RMSE item parameters estimate to identify the significant main effects.
The result of the study indicate that the differences of the perfomance between three-parameter logistic and multiple-choice models on the format test analysis in mathematics subject are significant at the level of = .05. Each model which generated ability estimation and item parameter is significantly different. Multiple-choice model provided higher accurate estimation than three-parameter logistic model. In addition, the test information given by multiple-choice model is three times higher than three-parameter logistic model although it could not offer a solid conclusion related to the sample size on each test length which gives the optimal score of test information.
Key words: parameter recovery, mathematics testing, simulation study. Abadyo2015-07-10T03:21:10Z2015-07-10T03:21:10Zhttp://eprints.uny.ac.id/id/eprint/23266This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232662015-07-10T03:21:10ZSOFTWARE DESIGN TO RISK ANALYSIS OF PADDY PRODUCTION WITH ENSO INDICATORS (CASE-STUDY: EAST JAVA)Indonesia known as agrarian country, it caused by most its people are farmers. The level of paddy production in East Java was highest compared to other provinces. However, its level of production has decreased in recent years. This was caused by the lack of knowledge about risk management in paddy production. One of knowledge should be known is the change of seasons. In fact, the change of seasons was difficult to predicted due to global climate disruption. In previous study, ENSO was used to climate forecasts for decision-making in agriculture. A risk assessment framework could be used in policy decision-making processes. In this paper, we discuss about architecture design for decision support system (DSS) to risk of paddy production in East Java with ENSO indicators. ENSO indicators are SST (Sea Surface Temperature) anomalies, as predictor variables. Harvested area in East Java as respons variable. Predictor and respons variables is identified their correlation using Copula correlation. Estimation of harvested area is constructed using Robust regression model. The prediction level of risk of paddy production is determined using confidence interval (CI). The last, we construct DSS components, database systems, and user interface design.
Key words: Decision Support Systems (DSS), agriculture, ENSO, copula correlation, robust regression. Nisa Miftachurohmah. Imam Mukhlash. Sutikno2015-07-10T03:16:47Z2015-07-10T03:16:47Zhttp://eprints.uny.ac.id/id/eprint/23262This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232622015-07-10T03:16:47ZTHE APPLICATION OF FOURIER TRANSFORMATION ON ANALOG SIGNAL PROCESSINGSignal is a quantity that carries informations of nature phenomen. The data’s which are presented on signal can be used to inforrm the characteristic of the phenomen. Nevertheless, signal is generally presented on time domain. For some cases, analysis of signals in time domain is too difficult. Here, we need to look at the problem from another perspective. Joseph Fourier, great mathematician, found that signal can be stated as linear combination of elementary signals where the coefficients of the linear combination were the spectrum of the signal and were function of frequency. Therefore, we can transform signal from time domain into frequency domain using fourier transformation. Moreover, periodic signal can be transformed using fourier series while aperiodic signal can be transformed using fourier integral.
Keywords : fourier transformation, analog signal, frequency domainM.Si. Nikenasih Binatari. Emi Nugroho Ratna Sari2015-07-10T03:10:56Z2015-07-10T03:10:56Zhttp://eprints.uny.ac.id/id/eprint/23258This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232582015-07-10T03:10:56ZMODELING ECONOMIC GROWTH OF DISTRICTS IN THE PROVINCE OF BALI
USING SPATIAL ECONOMETRIC PANEL DATA MODELEconomic growth is an important indicator to point out the success of regional development. On the framework of planning and evaluating regional development, an econometric model used to model the economic growth will be required. Since regional economic growth is often related to other regions, it is necessary to propose an econometric model that can accommodate spatial dependencies between regions. The application of spatial econometric model in modeling economic growth of districts in the Province of Bali will be constrained due to limitation on the cross sectional unit which are only nine districts. It can be overcome by using panel data, hence spatial econometric panel data models will be used to model the economic growth of districts in the Province of Bali. The kind of spatial weight used in this research is customized in order to suit the characteristics of the regions in the Province of Bali. Customized weight is formed based on the share of common side or vertex as the queen contiguity and also consider the existence Denpasar and Badung as the center of economic activities. Therefore, it can be assumed that they have a relationship with each district in the Province of Bali. The result of this research shows that the best model is Spatial Error Model (SEM) random effect and the significant variables on influencing the economic growth of districts in the Province of Bali such as: local revenue, capital expenditures, electrification ratio, mean years school and gross enrollment rate.
Key words: econometrics, economic growth, panel data, spatial. Ni Ketut Tri Utami. Setiawan2015-07-09T22:14:02Z2015-07-09T22:14:02Zhttp://eprints.uny.ac.id/id/eprint/23209This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232092015-07-09T22:14:02ZSTABILITY ANALYSIS AND OPTIMAL CONTROL ON THE MODEL HARVESTING OF PREY PREDATOR WITH FUNGSIONAL RESPONSE TYPE IIIEcosystem is the reciprocal relations between living things and their environment. Relationships between organisms or individuals will not be separated from the process of eating and being eaten. On ecological science event called the food chain. In the food chain, there is the term prey and predator, where both are interdependent of each other. The behavior or characteristics of the predator-prey can be modeled mathematically and historically has been developed by researchers. Predator-prey system basic model in general, first introduced by Lotka-Voltera, later developed by Leslie and continued by Holling-Tanner. On the model of Holling-Tanner developed a response function on the function called predator Holling. In this research, the stabilty analysis and optimal harvesting control are done on predator prey system with Holling response functions III. Considering the ecosystem, especially in the sea there is a bite to eat, interaction so that the appropriate harvest strategies are needed for maximum commercial benefit while maintaining the sustainability of the species. In this case, the optimum harvesting amount obtained using the Principle of Maximum Pontyagin.
Keywords : Model of Prey predator, Function response Holling type III, Harvesting, The principle of Pontryagin’s maximum.. Mohammad Rifa’irifai@matematika.its.ac.id. SubchanSubchan@its.ac.id. Setidjo WinarkoSetidjowinarko@its.ac.id2015-07-09T22:10:10Z2015-07-09T22:10:10Zhttp://eprints.uny.ac.id/id/eprint/23208This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232082015-07-09T22:10:10ZMODIFICATION OF CROSSOVER OPERATOR ON GA APPLICATION FOR TSPGenetic Algorithm (GA) has been widely used in many fields of optimization; one of them is Traveling Salesman Problem (TSP). GA in the TSP is primarily used in cases involving a lot of vertices, which is not possible to enumerate the shortest route. One of stages in GA is crossover operation to generate offspring’s chromosome based on parent’s.
Example of some crossover operators in GA for TSP are Partially Mapped Crossover (PMX), Order Crossover (OX), Cycle Crossover (CX), and some others. However on constructing the route, they are not considering length of the route to maximize its fitness. The use of random numbers on constructing the route likely produces offspring (a new route) that is not better than its parent. Sequence of nodes in the route affects the length of the route. To minimize uncertainty, then the crossover operation should consider a method to arrange the chromosomes.
This article studied incorporating two methods into crossover stage, in order to ensure the offspring has good fitness. Methods to be combined with algorithms are commonly used in the route searching; those are Nearest Neighbor algorithm, and Sequential Insertion. Operators used are CSI (Crossover combined with Sequential Insertion) and CNN (Crossover combined with Nearest Neighbor), named after the method used.
Those operators are compared with PMX operator on test using benchmark data from TSPLIB on some independent executions. The tests showed that CSI are better than two other and length of its route was relatively equal to optimal length recorded.
Keywords: Genetic Algorithm, Traveling Salesman Problem, Crossover operator. Darmawan Satyanandadarmawan.satyananda.fmipa@um.ac.id2015-07-09T21:45:04Z2015-07-09T21:45:04Zhttp://eprints.uny.ac.id/id/eprint/23207This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232072015-07-09T21:45:04ZTHE COMPARISONS OF RELIABILITY ESTIMATION ON THE COMPOSITE SCORE OF MATHEMATICS TESTIn a test, the final score was obtained as a composite of factors built up the test. The factors load in a test, would affect reliability of score of a test as composite of its factors. This study compared the reliability of the composite scores of mathematics test regardint its the loading factor. This study used the national examinations data of mathematics test in Junior High School, which was then analyzed using exploratory factor analysis to determine the loadingfactor in many cases basics on factors and long of the test. Furthermore the reliabilities estimated, and then compared with the H*-test and the Hakstian and Whalen test. The results showed that the analysis of 1-factor, the coefficient of reliability on a set of 20 items and a set of 25 items are higher than the original test load of 30 items. In the analysis of the two factors, the coefficient of reliability on a set of 15, 20, and 25 items are higher than the original test load of 30 grains when analyzed by one factor. In the analysis of the three factors, a set of 20 and 25 items have higher reliability coefficient compared with the original test load of 30 items when analyzed by one factor.
Key words: reliability estimation, composite score, mathematics testDr. Heri Retnawati2015-07-09T21:43:08Z2015-07-09T21:43:08Zhttp://eprints.uny.ac.id/id/eprint/23206This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232062015-07-09T21:43:08ZTHE EFFORT OF INCREASING LEARNING MOTIVATION OF EIGHTH GRADE STUDENTS IN SMP MUHAMMADIYAH 3 YOGYAKARTA WITH APPLYING GEOMETRY LEARNING BASED ON VAN HIELE THEORYThe purpose of this research is to improve students' learning motivation through the application of geometry learning based on van Hiele theory. There are five stages in the learning of geometry based on the van Hiele theory: (1) Inquiry, (2) Directed Orientation, (3) Explication, (4) Free Orientation, (5) Integration. This research used a classroom action research. The subjects were 32 students of class VIII D in SMP Muhammadiyah 3 Yogyakarta. Instruments in this research were motivation questionnaire, test item description, and observation sheet of feasibilitylearning. Analysis of the data used is descriptive analysis. The results of this research were: (1) At the end of the first and second cycle, there were 65.63% and 87,5% of students who have learning motivation (minimum) in the medium category, (2) At the end of the first and second cycle, there are 70.94% and 84,16% of students who reached a value greater than or equal to 75, (3) The average percentage of learning feasibility at the first and second cycle was 85.33% and 81.81%. Thus, this research was considered successful because it reached target of this research: At least 75% of students who have a learning motivation (minimum) in the medium category and reached a value greater than or equal to 75, and the average percentage of learning feasibility was greater than or equal to 75%.
Keywords :learning motivation, geometry, van Hiele. Veny Sri Astuti2015-07-09T21:41:09Z2015-07-09T21:41:09Zhttp://eprints.uny.ac.id/id/eprint/23205This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232052015-07-09T21:41:09ZTHE USE OF INFORMATION SEARCH METHOD TO TRAIN THE PROFESSIONAL COMPETENCE FOR THE PRE SERVICE TEACHER OF BASIC STATISTICS SUBJECTThis study aims to train professional competence in students as the pre service teacher who took Basic Statistics subject through learning information search method. This research method is descriptive with quantitative approach refer to the development phase of Fenrich P, (2007). Data collection techniques were observation, testing, and questionnaire. The data analysis technique was quantitative and qualitative descriptive (mixing method). From the research that has produced instructional learning (Lesson Plan, Student Worksheet, and Evaluation Sheet) were eligible based on expert validation. Professional competence can be practiced 40% at the first meeting and 60% at the second and third meeting, so it was not in accordance with predetermined criteria. The mastery learning of students were 62.86% students pass the study and 37.14% has not thoroughly studied, so that less than 75% of students who pass the study. The student activities were in accordance with predetermined criteria. This is indicated by the relevant activity was 11.52% or less than 25%. The most dominant activity was 28.48% search for information. Learning management of lecturer was view from feasibility activities in lesson plan. The feasibility of lesson plan achieved more than 75% for each meeting. Student response after following the learning by information search method of Basic Statistics subject is more than 75% of students expressed a positive response to each aspect listed in the student questionnaire responses.
Keywords: information search methods, professional competence, basic statistics.. Wasilatul Murtafiah2015-07-09T21:39:25Z2015-07-09T21:39:25Zhttp://eprints.uny.ac.id/id/eprint/23204This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232042015-07-09T21:39:25ZENCOURAGING STUDENTS CREATIVITY BY SECRET INSIDE BALLOON GAME IN GEOMETRY CLASSThe purpose of this study are encouraging students’ creativity by secret inside balloon game in geometry class at mathematics education of The University of Muhammadiyah Purwokerto, The Teacher Trainer and Education Faculty. Analytic geometry learning is implemented in the first semester, so that why lecture are conducted provided color and climate for new students how to study in college. Analytic geometry learning designed to the character, spirit, and a conducive learning atmosphere to the students. So, students can attend and follow in another course in the next semester. So this class implemented by using the game, one of the games that can be done is a secret inside balloon game. This game is to impress students that learning in college are fun and interest. There are three abilities to encouraging students’ creativity, they are synthetic ability, analytic ability, and practical ability
Secret inside balloon is create with so many basic learning theories, including the theory of Van Hiele and the theory of Dienes. Therefore learning of analytic geometry can be combined by a variety of games. The Steps are planning, action, evaluation, and reflection.
The analytic geometry that combined by secret inside balloon game is expected to introduce the students that the course or class in college are interesting and encouraging student attention in mathematics.
Keywords: Students creativity, secret inside balloon game, geometry classNugroho Yanuarto Wanda2015-07-09T21:33:45Z2015-07-09T21:33:45Zhttp://eprints.uny.ac.id/id/eprint/23203This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232032015-07-09T21:33:45ZDEVELOPING STUDENT’S INTEREST IN MATHEMATICS LEARNING THROUGH COLLABORATIVE PROBLEM BASED LEARNING MODELThere are something principal to push pupils to learn. One of these is interest. The teacher must be agent to develop the student’s interest to learn in mathematics. Collaborative problem based learning model can be optioned to improve the student’s interest. Collaborative problem based learning is the combine of problem based learning approach which is done collaboratively. Starting point with a problem in real world, Collaborative problem based learning can do with structure: ((1) given problem to solve/formulate individually; (2) students share their answer to their group; (3) students listen carefully their partners answer in group, they can discuss their answer by note similarities and differences in discuss paper; (4) after discussing, they solve the problem individually by creating a new answer that incorporates the best idea and students have a chance to presents their answer in front of class. The main purpose of this paper is to investigate about student’s interest and how to develop it through a collaborative problem based learning model.
Keyword: Interest, collaborative problem based learningPurwanto TriAbadi Agus Maman2015-07-09T21:31:40Z2015-07-09T21:31:40Zhttp://eprints.uny.ac.id/id/eprint/23202This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232022015-07-09T21:31:40ZEVALUATION OF THE IMPLEMENTATION OF OFFICE365 PROGRAM
FOR ONLINE TUTORIAL DELIVERY OF A COLLEGE MATHEMATICS COURSEThis study is intended to improve the distance learning online tutorial services for students who participate in online tutorial offered by Universitas Terbuka (UT), specifically courses offered by Department of Mathematics, School of Mathematics and Natural Science. Since 2013 UT has offered the online tutorial services that integrate the Office365 program and the Learning Management System MOODLE. Office365 program can support the distance learning activities, for example the availability of digital interactive whiteboard and webinar can support synchronous interactions between students and tutor. These two features of Office365 can facilitate the explanation of mathematical concepts, equations, and symbols which are not supported by MOODLE. The Mathematics department adds the graphic tablet which is connected to the PC or laptop for the tutor to better utilized the digital interactive whiteboard feature. This study utilizes a research and development approach especially the ADDIE (Analyze, Design, Development, Implementation and Evaluation) model in developing the improved online tutorial program. The aim of this study is to apply the features of Office365 in line with the MOODLE system. The two programs are observed when offered the online tutorial of Introductory to Mathematic course. The result of the evaluation of the trial is that for the webinar and the interactive whiteboard features, students say that they are beneficial to them in getting the explanation about introductory mathematics concepts. However, the obstacle to utilize the program smoothly is internet connection that is up and down, and the limit time of the webinar. In the future the webinar time will be increase to 4 times instead of three times, on Saturdays or Sundays in the two months of the online tutorial.
Keywords: Office365, MOODLE, Mathematics online learningAlief Farihati SittaMustafa DinaNoviani Purwanti Wahyu2015-07-09T21:27:44Z2015-07-09T21:27:44Zhttp://eprints.uny.ac.id/id/eprint/23201This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232012015-07-09T21:27:44ZKNOWLEDGE IN PRACTICE OF TEACHING RATIO AND PROPORTION: A CASE OF TWO IN-SERVICE PRIMARY TEACHERSThis study draws upon an ongoing research in investigating the knowledge in practice regarding Mathematics Content Knowledge (MCK) and Mathematics Pedagogical Content Knowledge (MPCK). It investigated the enactment of teachers’ knowledge in teaching practice. I use mixed method to explore two in-service primary teachers’ MCK and MPCK understanding categories on ratio and proportion and analysed teaching practice in the same content with developed framework regarding exploratory factor analysis for video observation. The result indicated that some teachers’ respond on written assessment could be observed in practice. However, the students misconception on ratio and proportion which were explored in written assessment were seldom appear in teaching practice due to no task for students to reveal misconception.
Keywords: MCK, MPCK, knowledge in practice, ratio and proportion, IndonesiaEkawati Rooselyna2015-07-09T21:25:42Z2015-07-09T21:25:42Zhttp://eprints.uny.ac.id/id/eprint/23200This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/232002015-07-09T21:25:42ZDEVELOPING STUDENTS’ UNDERSTANDING IN LEARNING LINEAR EQUALITY OF ONE VARIABLE THROUGH CONTEXTThe aim of this paper is how to develop the students’ understanding in learning linear equality of one variable through context. It has mathematical problem that students could understand in learning linear equality of one variable. In this article, we will discuss one part of activity out of five activities that we have developed. This activity focused on how students could link the contextual problem into solving of the linear equality of one variable, especially on how to bring students understanding into formal form. The participants of this research were twenty-five students in class of VIIc MTs Diniyah Puteri Pekanbaru. The method of this research is design research. It has three phases consist of preparing of experiment, experimenting in the classroom, and conducting the retrospective analysis. While experimenting in the classroom, the collected data indicated that the students faced some difficulties. They could not understand while connecting the contextual problem into the formal form. Otherwise, the starting activity showed that they interested counting the datum of “Card Family”. They interested to count and compare the datum and gave any strategies that we expected. The diversity of students’ answering can be discussed with the other students to obtain the best result. The closing of experimenting classroom, students was guided to get formal form likely variable in mathematics and the equality.
Keyword: Linear Equality of one variable, design research, PMRI,Wahyuni Reni2015-07-09T21:23:37Z2015-07-09T21:23:37Zhttp://eprints.uny.ac.id/id/eprint/23199This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231992015-07-09T21:23:37ZDEVELOPING INTERACTIVE CABRI 3D ASSITANCE MEDIA IN THREE DIMENSIONAL SPACE FOR GRADE X STUDENTS OF SENIOR HIGH SCHOOL USING GUIDED INQUIRY LEARNINGThe aims of this study is to describe the developing of media as guided inquiry guidance with Cabri 3D assistance in three dimensional space for students of grade X of senior high school and to know students’ interests in interactive media based on guided inquiry method.
This study is belonging to research and development with ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model. Analysis stage covers material, students and situation analysis. Design stage covers making grid and deciding media design. Development stage covers creating media, quality validation before trial, and revision base on the result of media validation. The implementation stage that is implementation the media to students of SMA N 1 Wonosobo. The last stage is evaluation, that is evaluated the developing and quality of media.
The result of the study is described as follows. The result of the material expert assessment base on the use of method, didactic, construction, technical, the worthiness of material and presentation has mean score 3, 21(good classification), the result of teacher assessment has a mean score 3,7 (very good classification), and the result of media expert assessment base on the aspect of simplicity, integrity, balance, and coloring has mean score 3,46 (very good classification). Base on the result of students’ interest has mean score 78,91% (strong classification). While base on evaluation test, students have mean score 83,2 (very good classification). Thus, the result of the study shows the media is appropriate to be used as one of mathematics learning media.
Key words: cabri 3D, guided, inquiryLaksmiwati Pasttita Ayupasttitaayu@gmail.com2015-07-09T21:21:17Z2015-07-09T21:21:17Zhttp://eprints.uny.ac.id/id/eprint/23198This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231982015-07-09T21:21:17ZTHE EFFECT OF PENTOMINO ON THE SPATIAL ABILITYAn intelligence game, Pentomino, was used to discover whether it can improve students’ spatial ability or not via spatial rotation.
A 2 (gender: male and female) × 2 (group: experiment group and control group) × 2 (cognitive style: field dependent and field independent) experiment was designed to conduct this research, where gender, group and cognitive styles were all between-subjects variables. After one month training, the data collected from both groups was analysed and then the results were as follows: For the spatial ability, Pentomino had some effects. In particular, the main effect of group was significant. Comparing the mean score of two groups, the performance of spatial rotation of experiment group was higher than that of control group, therefore, Pentomino had positive effect on students’ spatial ability. In addition, the interaction effect of gender × group × cognitive style was marginally significant when analysing the performance of spatial rotation.
Keywords: Pentomino, cognitive style, groups, gender, spatial mental rotation.Chen Ouhao2015-07-09T21:19:05Z2015-07-09T21:55:41Zhttp://eprints.uny.ac.id/id/eprint/23197This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231972015-07-09T21:19:05ZEPISTEMOLOGICAL OBSTACLES ON MATHEMATIC’S LEARNING IN JUNIOR HIGH SCHOOL STUDENTS: A STUDY ON THE OPERATIONS OF INTEGER MATERIALAs a lesson considered as a difficult lesson, many factors affect learning opbstacles in learning mathematics. Learning obstacles could be experienced by the students with different levels of ability. The most common factor that causes learning difficulties is the lack of teacher’s ability to manage learning process and apply a suitable methodology. For example, the teacher goes directly to a new material regardless the prior knowledge of students. Moreover, in applying the learning plans, the teacher are less considering the variety of the students’ responses on the developed didactic situation. As a result, the students give no response at all since the students’ responses are beyond the teacher’s ability. This paper focused on the student's epistemological obstacle on the operations of integer material in grade seventh.
From the results of the survey in class VII at two Junior High School in the city of Palembang on the operations of integer, epistemological obstacles occured in understanding the concept of integer operations. Students understood in concept of addition and subtraction, but not able to apply to the problem, especially on addition and subtraction that involving positive and negative integers all at once. The forms of a + (-b), -b + a, and a - (-b) are still difficult to be solved by the students. Based on the analysis of epistemological obstacle against their answers, students seemed not to understand the meaning of negative numbers as a abstract numbers in their minds. Consequently, integer applications problem cannot be solved properly by most students.
Key words: Learning Obstacles, epistemological obstacles, operations of integerFahriza Fuadiah Nyiayu2015-07-09T21:15:25Z2015-07-09T21:15:25Zhttp://eprints.uny.ac.id/id/eprint/23196This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231962015-07-09T21:15:25ZROLE OF HIGHER ORDER THINKING SKILLS IN ENHANCING TIMSS TASKSStudents’ performances in TIMSS and PISA have featured strongly in recent discussions and debates about the quality of mathematical learning outcomes both from teachers and policy makers. Findings of TIMSS and PISA showed that most high school students in Malaysia continue to perform at less than satisfactory levels. Particularly, in tasks that are cognitively demanding. However, such findings are based on a broad-brush view of the performance of Malaysian students. In this analysis, there is a lack of information about the kind of tasks which are proving to be problematic to the students. This latter information, we argue is critical for future actions aimed at lifting their TIMSS performances. The Malaysian Ministry of Education had advocated for the integration of Higher Order Thinking Skills [HOTS] in mathematics and science. The result of TIMSS has placed greater emphasis on the need to teach HOTS effectively. Our argument is that in order for HOTS to have a significant impact on students’ engagement with and improvement on TIMSS, researchers ought to undertake a fine-grained analysis of student performances in relation to particular tasks and use this information to help teachers understand and integrate HOTS in their teaching. In this paper, we present a critical analysis of selected TIMSS Tasks and demonstrate how to better support students in the use of HOTS in making progress with such tasks. In so doing we present a methodology that can be utilised by teachers better understand the role of HOTS in empowering students move from lower to higher levels of cognitive funtioning in the context of TIMSS and similarly demanding tasks. Our methodology provides an important starting point for the design of future professional development programs for Malaysian mathematics teachers in articulating HOTS and implementing them in regular classrooms.
Key words: Higher Order Thinking Skills [HOTS], mathematics problem solving, secondary mathematics, TIMSS Tasks, mathematics teacher professional development, level ofMohd. Tajudin Nor’ainChinnappan Mohan2015-07-09T21:07:28Z2015-07-09T21:07:28Zhttp://eprints.uny.ac.id/id/eprint/23195This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231952015-07-09T21:07:28ZTHE BASIC ABILITY ON BASIC STATISTICS AND MATHEMATICAL DISPOSITION OF THE SECOND SEMESTER STUDENTS OF MATHEMATICS EDUCATION PGRI UNIVERSITY OF PALEMBANGThe objectives of the research are: 1) to know the basic ability of basic statistics and mathematical disposition of the second semester students of mathematics education in PGRI University of Palembang, (2) is there any significant relationship between the basic ability on basic statistics and mathematical disposition of the second semester students of mathematics education in PGRI University of Palembang. The methods used in this research are descriptive and correlation methods. The subject of the research are students of mathematics education of PGRI University of Palembang with the total numbered 103 students. The technique of collecting the data are test and questionnaire. Based on the result of data analysis can conclude that (1) the basic ability on basic statistics and mathematical disposition of the second semester students of mathematics education in PGRI University of Palembang are fair and good. (2) There is no significant relationship between the basic ability on basic statistics and mathematical disposition of the second semester students of mathematics education in PGRI University of Palembang.
Key words: the basic ability on basic statistics, mathematical disposition, descriptive, and correlationKesumawati Nila2015-07-09T21:03:29Z2015-07-09T21:03:29Zhttp://eprints.uny.ac.id/id/eprint/23194This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231942015-07-09T21:03:29ZEXPLORATION THE STUDENTS REASONING IN SOLVING TRIGONOMETRY PROBLEMS IN TERMS OF THE ABILITY OF LOGICAL THINKINGReasoning has been researched by many experts. However, the research of students in reasoning in solving Trigonometry is not sufficient. This research is a qualitative research used to explore students' reasoning in Trigonometry based on logical ability and comparation between subjects with high-logic ability and subjects with medium-logic ability. The instruments in this research are the researchers themselves as the main instrument guided by math-problems solving task and valid and reliable interview manual. The data collection is done by task-based interview. The subjects of the research is the XII-IPA students which consists of 2 people. The research process follows these stages : (a) formulate the reasoning indicators in solving math problems based on relevant theory and research, (b) formulate valid and reliable supporting instruments (math problems solving task and interview manual), (c) collecting the research subject by giving logical ability test, (d) data collecting to reveal students' reasoning in solving math problems, (e) conclude the research result.
The result shows: (1) the similar method between the high-logic subject and the medium-logic subject is in solving each Trigonometry question, they always start with inductive reasoning and then continue with deductive reasoning, (2) the difference between the subjects reasoning of high-logic ability and medium-logic ability was on the process of reasoning between two those two subjects on each of problem solving according to Polya’s steps. Based on the result, the students' reasoning can be a reference in developing math learning model to improve students reasoning abilty base on logical thinking.
Keyword : Mathematics Reasoning, Logical ThinkingIkram MuhammadIkram_math11@yahoo.co.idMuzaini Muhammad2015-07-09T21:00:47Z2015-07-09T21:00:47Zhttp://eprints.uny.ac.id/id/eprint/23193This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231932015-07-09T21:00:47ZMOTHER TONGUE-BASED BILINGUAL EDUCATION PRACTICE FOR TEACHING PRIMARY MATHEMATICS IN RURAL SCHOOLIn an ethnically diverse country like Malaysia, educators often argue about the best medium of instruction to be used in teaching mathematics especially in primary school. Therefore, the aim of this study was to investigate the effectiveness of teaching mathematics employing the pupils’ mother tongue as the medium of instruction in a rural primary school. Specifically, this quasi-experimental study was conducted to compare the effect of two treatments: using Bahasa Malaysia as the medium of instruction and using the pupils’ mother tongue as the medium of instruction in teaching a mathematics lesson on the topic of ‘Money up to RM1000’. The samples of this study consisted of two classes of Year 3 pupils from two rural schools in Kapit, Sarawak. Each class consisted of 16 pupils whose mother tongue was Bahasa Iban . Iban is one of the major ethnic groups in Sarawak. The class from the first school employed Bahasa Malaysia as the medium of instruction while the class from the second school employed Bahasa Iban as the medium of instruction. A pre-test and a post-test were administered to both classes before and after the study. The main finding from this study suggested a higher positive impact in learning mathematics for pupils using their own mother tongue as the medium of instruction. Thus, the incorporation of mother tongue in the primary mathematics classroom provides a better solution to aid rural pupils’ understanding and development of basic mathematical concepts. Moreover, this could be considered as a crucial platform in knowledge acquisition in a country with diverse ethnic groups.Nizam Lee Abdullah Mohd FaizalRoland Demong AlvinsonAb Ghani SazelliChe Ahmad Che NidzamAdnan Mazlini2015-07-09T20:54:45Z2015-07-09T20:54:45Zhttp://eprints.uny.ac.id/id/eprint/23192This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231922015-07-09T20:54:45ZTHE IMPLEMENTATION OF POGIL IN MATHEMATICS LEARNING PROCESS TO DEVELOP STUDENTS’ COMPETENCES WITHIN CURRICULUM 2013Curriculum 2013 is the newest curriculum in Indonesia which focuses on four competences. Those are religiosity, attitudes, knowledge, and skills. Those four competences are required by students in mathematics learning process within Curriculum 2013. The approach used in this curriculum is scientific approach with inquiry learning implementation. One of the learning strategies which are based on inquiry learning and suitable with Curriculum 2013 is Process Oriented Guided Inquiry Learning (POGIL). Actually, POGIL is a strategy which is based on science learning and constructivism principles, but it can be implemented in mathematics learning to develop the competences of students. In a POGIL classroom, students work in a team. The learning team constructs knowledge by working in a group with inquiry activities that has been specially designed in student worksheet. These activities can improve the students’ knowledge level by focusing on concept of development. Besides, the students can also apply their knowledge in new contexts. Moreover, the students learn to rely on thinking and performing skills rather than memorizing, and also developing positive relationships with other students. This paper aims to explain how to implement POGIL in mathematics learning process to develop students’ competences within Curriculum 2013. The method used in this paper is literature review. This paper will explain the theories of mathematics learning, POGIL, and competences of Curriculum 2013.
Keywords: mathematics learning, POGIL, competences of Curriculum 2013Rosaria Purnomo Mega EriskaAbadi Agus Maman2015-07-09T20:52:12Z2015-07-09T20:52:12Zhttp://eprints.uny.ac.id/id/eprint/23191This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231912015-07-09T20:52:12ZIMPROVING STUDENT’S SELF-REGULATED LEARNING IN MATHEMATICS USING GARDNER’S MULTIPLE INTELLIGENCES TEACHING AND LEARNINGDuring this time, the assessment of teachers put more emphasis on the cognitive aspects or competence of students' knowledge. Affective competence of students such as student’s self-regulated learning received less attention. Besides, student’s self-regulated learning in mathematics needed to be considered because it would support the learning process. However the fact is student’s self-regulated learning in mathematics was still relatively low.
There were several things that indicated low student’s self-regulated learning in mathematics. One of the indications was students were passive in participating the lesson. Another indication was students only learnt mathematics when there was homework or mathematics test, students did not reread the material at home.
There were studies that indicated Garner’s multiple intelligences teaching and learning could improve student’s self-regulated learning in mathematics. The question was: what can be done by mathematics teacher to help students improve their self-regulated in learning mathematics? For example, teachers could help students improve their self-regulated in mathematics learning by implementing Gardner’s multiple intelligences teaching and learning. This paper will discuss how to improve student’s self-regulated learning in mathematics through Gardner’s multiple intelligences teaching and learning.
Keywords: student’s self-regulated learning, mathematics, multiple intelligencesMadha Melissa Margaretha2015-07-09T20:50:10Z2015-07-09T20:50:10Zhttp://eprints.uny.ac.id/id/eprint/23190This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231902015-07-09T20:50:10ZSHIFTING STUDENTS’ AWARENESS OF GEOMETRICAL CONCEPTS THROUGH LESSON STUDYStudents’ performance in geometry and hence, their geometric thinking remain a concern for researchers globally. This quasi-experimental research design aims to investigate the effects of Phase-Based Instruction (LS-PBI) using Geometer’s Sketch Pad to reveal Thai students awareness of geometric concepts. Three groups of mixed ability Grade 7 students (aged 12 – 13) were chosen as participants in one of the schools in Yala Province, Thailand. These groups were taught the topic of Properties of 2D and 3D geometric shapes in a cycle of three instructions by three different teachers engaging in Lesson Study method. A twelve-item multiple choices test was administered to students in each group before and after each lesson study session to assess their understanding of geometrical concepts. Findings of the pre-tests and post-tests revealed that LS-PBI using GSP was effective in revealing students’ shifts in awareness of geometrical concepts.
Keywords: Geometer’s Sketchpad, Geometric Thinking, Geometry, Lesson StudyAdulyasas LillaAbdul Rahman Shafia2015-07-09T20:47:08Z2015-07-09T20:47:08Zhttp://eprints.uny.ac.id/id/eprint/23189This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231892015-07-09T20:47:08ZSUPPORTING STUDENTS’ REASONING THROUGH INTRODUCING FRACTIONS AS PART-WHOLE AND MEASURE MEANINGOne of reasons why fractions are a topic which many students find difficult to learn is that there exist many rules calculating with fractions. Some previous researcher confirmed that the problem which students encounter in learning fraction operations is not firmly connected to concrete experiences. Primary school curricula in Indonesia introduce fractions in class III and by class V, students are expected to learn many operastions on fractions. In fact, many students in class V have some misconceptions or misunderstandings about the concepts. For instance, they would say that ¼ is more than 1/3 and ½ + 2/3 = 3/5. In addition, most textbooks used by students contain basically many procedures, they learn fractions mechanically without any conceptual grasp. Moreover the textbooks use only part-whole interpretation as a way to introduce a fractions, it is not enough in facilitating students’ reasoning in the context of task of comparing, finding equivalent fractions and operating fractions. In this paper, we describe data/informations colected during facilitating student in learning fractions using methode combining the part-whole and measure interpretation of fractions. We also will show examples of students’ reasoning indicating teaching fractions using the combination migh prove to be better methode in supporting students’ reasoning about fractions.
Key words: reasoning, fractions, part-whole, measureAnwar Lathiful2015-07-09T20:45:03Z2015-07-09T20:45:03Zhttp://eprints.uny.ac.id/id/eprint/23188This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231882015-07-09T20:45:03ZTHE EFFECT OF MEDIA-ASSISTED GUIDED DISCOVERY METHOD OF CONCRETE OBJECTS TO MATHEMATICAL CRITICAL THINKING ABILITYThe purpose of this study was to describe the effect of media-assisted guided discovery method of concrete objects on students’ mathematical critical thinking. This research was conducted at SMP Darul Maarif in South Jakarta, Academic Year 2013/2014. The method used was a quasi-experimental with Control Group Post-test Only Design. The sample was 70 students which taken cluster randomly. Data of the research were collected through the test. Of the students’ mathematical critical thinking ability. The hypothesis of the research was tested by using t-test. The results showed that the students’ mathematical critical thinking abilities were taught by guided discovery learning methods aided concrete media objects is higher than students were taught by conventional teaching methods (of t = 2.40 and t-table = 2.00 ). It can be seen from the results percentage from each indicators whcih covers: For , the indicator which focussed on questions of the experimental class reached 78.7%, while the controlled class reached 61.76%. Argument analysis indicator of the experimental class reached 66.2%, while the controlled class 47.55 %. In answering the questions which being supported by argument of the experimental class reached 61.11%,while 48.53% in the control classes. For the indicators in making decisions and considering the results of the experimental class reached 76.59%, while the controlled class 70.59%. Based on the research results, it can be drawn conclusion that mathematical instruction on the subject matter of flat figures using media-assisted guided discovery method of concrete objects significantly affected on students' mathematical critical thinking ability.
Key word: mathematical critical thinking, media-assisted, guided discovery. KhairunnisaKamil Ghufron. Kadir2015-07-09T20:39:45Z2015-07-09T20:39:45Zhttp://eprints.uny.ac.id/id/eprint/23187This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231872015-07-09T20:39:45ZENHANCING THE STUDENTS’ MATHEMATICAL CRITICAL THINKING ABILITY THROUGH PROBLEM SOLVING STRATEGIES MAKE AN ORGANIZED LISTThe purpose of this study is to analyze the effect of problem-solving strategies make an organized list on students’ ability of critical thinking in mathematics. This research was conducted at MTs in academic year 2014/2015. The method of the research used quasi-experimental method with control group post test only design. The Subject for this research were 47 students which selected through cluster random sampling technique. Data of the students’ mathematical critical thinking ability were collected thorough test. The results of this study show that students’ critical thinking ability who are taught using problem-solving strategies make an organized list is higher than who are taught using conventional strategies (thitung = 6.18 > ttabel = 2.01). It is seen from the indicators of mathematical critical thinking ability on aspects of the focusing on questions 78.26%, giving reasons 72.88%, drawing conclusion 73.96%, developing other alternative to solve problem 76.04% and aspects Constructing steps of problem solving 74.51%. Whereas, for students who are taught using conventional strategies on aspects of focusing on questions 45.13%, giving reason 58.75%, drawing conclusion 55.43%, developing other alternative to solve problem 51.09% and aspects Constructing steps of problem solving 68.51%. Thus, problem-solving strategies make an organized list significantly affect on students’ ability of critical thinking in mathematics.
Keywords: Problem-solving strategies, make an organized list, mathematical critical thinking.. Kadir. LatifahMusyrifah Eva2015-07-09T20:36:59Z2015-07-09T20:36:59Zhttp://eprints.uny.ac.id/id/eprint/23186This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231862015-07-09T20:36:59ZIMPROVING THE QUALITY OF SOCIAL ARITHMETIC LEARNING PROCESS AND ACHIEVEMENT USING MULTIDISCIPLINARY APPROACHThe objective of research was to find out how the multidisciplinary approach in social arithmetic learning could improve the quality of learning process into the joyful and meaningful one and the student learning achievement.
This research was conducted in two cycles. Each cycle involved four stages: planning, acting, observing, and reflecting. The indicators of performance in this research were: (1) there was indication of improvement in the students’ joyful and meaningful learning process in the result of observation, questionnaire, and interview, (2) there was an improved learning achievement indicated by the mean score of tests showing that at least 80% students obtained score higher than the minimum passing criterion (78). The subject of research was the 7th graders of SMPN 1 Wonosari, consisting of 24 students. The data of learning process was taken using questionnaire, observation, and interview. Meanwhile the data of learning achievement was taken using pretest and posttest. The data of learning process was processed and presented descriptively. The data of test result was processed and presented quantitatively.
The result of research showed that having passed through 2-cycle learning process in which reflection was conducted, it could be seen the improvement of learning process and percentage learning outcome passing. The students enthusiastically explored information, planned, implemented, communicated an idea of business, estimated profit-loss and discount, and designed the follow-up of business outcome. The percentage passing of prior condition, cycle I, and cycle II was 25%, 62.5%, 95.8%, respectively. In addition to improving the percentage passing, the was also an increase in the mean class score of achievement test result of 62.9, 77.5, and 82.9, in prior condition, cycle I, and cycle II respectively. It could be seen that all of three performance indicators were achieved from prior condition to last cycle. So, the conclusion of research was that multidisciplinary approach in social arithmetic learning could improve the quality of learning process into the joyful and meaningful one and learning achievement in the 7thF graders of SMPN 1 Wonosari of Gunungkidul Regency in the school year of 2014/2015.
Key words: multidisciplinary approach, social arithmetic, mathematics.Wulandari IkaBayu Nugroho Purna2015-07-09T20:33:57Z2015-07-09T20:33:57Zhttp://eprints.uny.ac.id/id/eprint/23185This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231852015-07-09T20:33:57ZSEVERAL APPROACHES IN PRESENTING TRIGONOMETRIC INTRODUCTION LEARNINGThis research was the result of library study explaining several approaches in presenting trigonometric introduction learning viewed from the chronology of trigonometry inception to be a starting point or an outline in developing a trigonometric learning scenario. Presenting a challenging, joyful, and meaningful trigonometric learning is a challenge to teachers. It is because trigonometry is a complex and applicative material but considered as difficult by students. Considering the findings of some field researches, the students were found memorizing many trigonometric formulas and understanding them separately, and thereby less meaningful. Consequently, the students did not understand trigonometry completely, and even it was only recitation that will be forgettable soon. For that reason, there should be a good preparation on how to present trigonometric learning to make the students understand and master it. Trigonometric mastery cannot be apart from knowledge on background and chronology of trigonometry inception history. The creation of a concept is very important to the students to construction their own conception. Many things became the students’ question and it could not be answered because they did not know background and chronology of the creation of concept being studied. Such the condition forces the students to receive the theory as the way it is by means of memorizing only, so that the learning process becomes less meaningful. Departing from that background, this article raised a theme of the historical chronology of trigonometry inception to explain three approaches: circle unit, right triangle, and function, and to formulate six possible scenarios of trigonometric introduction learning combined from those three approaches.
Key words: mathematics, trigonometry, chronology, history.Bayu Nugroho PurnaWulandari Ika2015-07-09T14:06:04Z2015-07-09T14:06:04Zhttp://eprints.uny.ac.id/id/eprint/23184This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231842015-07-09T14:06:04ZTHE INTEGRATION OF HISTORY, TECHNOLOGY, ENGINEERING, ART, AND SCIENCE INTO TRIGONOMETRY OF SENIOR HIGH/VOCATIONAL MIDDLE SCHOOLThe 2013 curriculum contains the accomplishment of learning mindset: student-oriented learning that is active, interactive, networking learning pattern, team-based, using multimedia, corresponding to the characteristics of students, multidisciplinary, and critical. Such the mindset is implemented to the learning process corresponding to the standard process in order to achieve the objective of learning. The 2013 curriculum also presupposes a challenging, joyful and meaningful mathematic learning through problem solving, retrieving, contextual learning, and etc. trigonometry is a unique and applicative topic. Trigonometric application is used particularly in astronomy and geography, and generally it is studied in a variety of areas including geometry, physics, optics, electricity, cartography, maritime, and architecture. The uniqueness and benefit of trigonometric application makes it interesting and important to study. However, the fact in the field and the findings of some research shows that trigonometry is still a difficult and less preferred material to the students. For that reason, there should be innovation in learning to make the trigonometry learnable joyfully, challengingly and meaningfully to the students. Some ways to do so, among others, are to integrate trigonometric learning into historical approach, to use interactive multimedia technology, to bring it into contextual problem related to civil engineering and architectural disciplines, to introduce it into history, technology, engineering, and science. This article was the result of library research raising the theme of the Integration of history, technology, engineering, art, and science, into trigonometry of Senior High/Vocational Middle Schools to realize a joyful and meaningful learning. Through such the innovative ideas, trigonometry is expected to be the most waited for subject to the student.
Key words: trigonometric history, technology, engineering, art, science.Ningrum F. VhantoriaBayu Nugroho PurnaWulandari Ika2015-07-09T13:49:56Z2015-07-09T13:49:56Zhttp://eprints.uny.ac.id/id/eprint/23183This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231832015-07-09T13:49:56ZBUILDING MATHEMATIC CLASS WARMTH TO GROW LONG-LIFE LEARNING SPIRITBeing a teacher is some honour to participate in building a civilized world civilization. The successful world civilization development cannot be independent of the successful development of human mental through education. For that reason, it is very important to grow awareness and to develop a long-life learning spirit among the students. One idea of realizing it was to build warmth in mathematic class. The rigid, sterile, dry or less meaningful mathematic class that results in trauma in the students should be left and managed into a warm mathematic class.
This article was a result of library study and the authors’ best experience in the field raising creative ideas to build a warm mathematic class; thereby the mathematic learning became joyful, meaningful, challenging and providing solution to real problem and growing a long-life spirit learning within the students. Those ideas were related to what should be known about the potential mathematic students, what the teacher should be prepared to design a warm mathematic class, and how to design a warm mathematic class. From the result of library study and the authors’ best experience, it could be concluded that: (a) as a facilitator, the teacher should create mathematic class warmth by building close relationship between teacher and students, (2) the teacher should pay attention to the problem of meaningful and challenging learning, the students’ intellectual development level, learning style, prerequisite ability, interactivity, feedback, learning strategy, positive and joyful emotional climate, and conducive environment, and (3) the teacher should create an opportunity of developing a sustainable profession.
Key words: Long-life learning, joyful & meaningful learning.Rahayu SriWulandari IkaBayu Nugroho Purna2015-07-09T13:46:24Z2015-07-09T13:46:24Zhttp://eprints.uny.ac.id/id/eprint/23182This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231822015-07-09T13:46:24ZINDONESIAN STUDENTS’ MATHEMATICS PROBLEM SOLVING SKILL IN PISA AND TIMSSThis study aims to describe the critical opinion of Indonesian students’ problem solving skill based on PISA and TIMSS’s result. This study based on literature which the PISA and TIMSS study showed Indonesian students’ achievement was poor. In the last PISA 2012, Indonesia ranked 64 of 65 participant’s countries, whereas in the last TIMSS 2011, Indonesia ranked 36 of 40. On the contrary, Indonesian students’ got a lot of medals in international mathematics contest with a lot of rival countries. Nevertheless, we can’t compare them because of difference test type, but we should have critical thinking about those results. The other reason why we should criticize Indonesian PISA’s result is the sampling used. Why a wider country than Indonesia didn’t used representative sampling in PISA’s test? Why a wider country could participate with just some big cities in there? Was it permitted or by design? Furthermore, the PISA’s sampling which was used in some regions in Indonesia wasn’t representative, for example the samples were the schools belongs to low grade in national exam and accreditation. Moreover, there was lacking in carrying out PISA test, for example language differences and cultural differences can both influence the difficulty level. There was expert’s opinion that questions in different PISA’s test booklet have no function in exactly the same way in different countries, so the questions weren’t reliable at all. Then, was the Indonesian PISA’s result described the true students’ achievement? So, it is necessary to criticize the Indonesian PISA’s result.
Keywords: Indonesian students, mathematics’ problem solving skill, PISA, TIMSSFerry Wulandari Nidya. Jailani2015-07-09T13:43:46Z2015-07-09T13:43:46Zhttp://eprints.uny.ac.id/id/eprint/23181This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/231812015-07-09T13:43:46ZDIDACTIC DESIGN FOR IMPROVEMENT PHASE THINKING ABILITY AND DISPOSITION REFLECTIVE THINKING IN MATHEMATICSThis study is back grounded by the importance of Mathematical Reflective Thinking Ability (MRTA) to support mathematical critical thinking ability. That ability support the success in another ability in mathematic such as solving the problem in mathematic. Mathematical Reflective Thinking Ability also indicate mathematical reflective thinking disposition (MRTD). Mathematical reflective thinking ability and disposition which had been examined in earlier study only determine its indicator and has not determined its stage. This stage is important in order to find out which level someone had achieved it. Didactical design also support the enhancement of MRTA and MDTD, therefore in this study didactical design will also developed to enhance the stage of mathematical reflective thinking ability and disposition. Thus, the special target of this study is to obtain the stage or level of MRTA and MRTD along with didactical design which support its enhancement. The method which is done to obtain stage and didactical design of MRTA and MRTD is by development research method. The activity of MRTA and MRTD stage development and also didactical design is planned in 2 years. The development activity comprise theoretical study, draft arrangement of MRTA and MRTD and didactical design which support its enhancement, expert test, revision, pilot test with limited and wide scale. The subjects of study are Senior High School students. The result obtain 7 stages of MRTA and 3 stages of MRTD. The initial draft of didactical design for this MRTA and MRTD enhancement comprise those stages.
Keywords: Didactical Design, Stage, Reflective Thinking, DispositionNindiasari. Hepsihepsinindiasari@yahoo.co.id. Novaliyosi2015-07-08T21:21:59Z2019-03-11T00:33:26Zhttp://eprints.uny.ac.id/id/eprint/23023This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/230232015-07-08T21:21:59ZSTUDENTS’ PROBLEM SOLVING ABILITY IN MATHEMATICS: BASIC MATHEMATICS COMPETENCY, SCHOOL LEVEL, AND GENDERThis research is motivated by the importance of problem solving ability in mathematics. There are three indicators of problem solving ability in mathematics: (1) Identify elements that are known and asked, also adequacy of the required elements; (2) Select and apply problem solving strategies; and (3) Examine and explain the truth of the answers according to mathematical problems in question. Students’ problem solving ability in mathematics be reviewed of three aspects: basic mathematics competency (BMC), school level, and gender. This research involved 232 junior high school students which in Serang City, Banten Province. The research subject consisted of 108 male and 124 female from three different school levels: high, medium, and low level. There are two instruments here: basic mathematics competency test and problem solving ability test. The findings of the research are: (1) Overall, the mean scores of students' problem solving ability in mathematics is 57,18% which classified as medium category; (2) Student with high, medium, and low BMC successively obtained the mean score of problem solving ability 85,66% (high category), 56,34% (medium category), and 29,55% (low category); (3) Student in high, medium, and low school level successively obtained the mean score of problem solving ability 60,84% (medium category), 58,13% (medium category), and 52,55% (low category); (4) Male and female student successively obtained the mean score of problem solving ability 50,76% (medium category) and 63,61% (medium category).
Keywords: problem solving, basic mathematics competency, school level, genderPujiastuti Heni2015-07-08T21:17:53Z2015-07-08T21:17:53Zhttp://eprints.uny.ac.id/id/eprint/23022This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/230222015-07-08T21:17:53ZDEVELOPMENT OF ONLINE-PROBLEM BASED LEARNING MODEL IN STATISTICAL METHOD COURSEThis study aims to produce a valid and effective Online-Problem Based Learning (Online-PBL) Model in Statistical Method Course. Research and development, wich consist of four stages: pre-investigation, design, realization/construction, testing/evaluating & revision, was implemented in this study. The developed Online-PBL Model was judged two expert and a user and was tested againts 15 students of Statistical Method Class in Departement Mathematics of Education, Faculty of Mathematics and natural Science, Ganesha University of Education. The results of the analysis were: (1) based on the evaluation of the expert and the user, the Online-PBL has been developed was valid, (2) the Online-PBL Model was effective to increase students’ learning outcome.
Key words: Problem based learning, online learning, Statistical MethodMahayukti G.A.Suarsana I M2015-07-08T21:15:04Z2015-07-08T21:15:04Zhttp://eprints.uny.ac.id/id/eprint/23021This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/230212015-07-08T21:15:04ZTHE IMPLEMENTATION OF OPEN-ENDED APPROCH FOR IDENTIFYING STUDENT WORK PATTERNS ABOUT AREA CONCEPTThe purpose of this study is describing the patterns of students work in area problems. The background of the study is students are still having difficulty in chosing the right strategy to find area. The method is developing “best practice”. The subjects are 17 students of mathematics education program . They come from different provinces of Indonesia. The best practice is done by (a) discussing the types of open strategies, and (b) working open-ended subjective test. The results gets the answer patterns . From problem one, there are nine students with right answers, and eight students with wrong answer. The patterns of right answers are six students work by combining parts, and three students work by subtracting the hole area by parts. The patterns of wrong answers are four students work by combining parts with mistake in calculation, three students make conceptual mistake, and one student work by subtracting the whole by parts with mistake in calculation. From problem two, there are eight students with right answer, and 11 students with wrong answer. The patterns of answers are combining parts, subtracting from the whole, using similarity, and applying Pythagorean Theorem. The fact shows that there is the growth of critical and creative of mathematical thingking..
Key Words: study, open-ended, area, work pattern.Muhsetyo Gatotgatot.gse@gmail.com2015-07-08T21:12:34Z2015-07-08T21:12:34Zhttp://eprints.uny.ac.id/id/eprint/23020This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/230202015-07-08T21:12:34ZTHE IMPLICATIONS OF LOCAL CULTURAL VALUES IN LEARNING MATHEMATICSAs one of the efforts to preserve the local culture, Yogyakarta government puts cultural values in education that is placed on three things, first: cultural values as reinforcing aspects of educational goals, second: cultural values as a good approach in the implementation and management of education, third: cultural values as the content or payload education.
To support government programs should be a learning approach that combines cultural values as the content of the learning process. One approach that can be combined with the values of the culture is a contextual approach. Therefore the aim of this paper is to describe the mathematics learning with contextual approach which raised the local cultural values, especially in the circle material.
The steps of mathematics learning with contextual approach that combines local cultural values are as follows: (1) Relating local cultural events associated with the material to be learned through the videos or pictures. Cultural events used are various kinds of batik motif that have geometric shapes such as circles, traditional games, legends, traditional arts and ceremonies. (2) Experiencing means student learning activities with worksheets, teachers as a model to demonstrate the material being studied. (3) Applying mathematical concepts to solve meaningful problems associated with the local culture. (4) Cooperating means students work together to solve and discover mathematical concepts, and (5) Transferring, students use the knowledge gained in the new context.
Keyword: Contextual, culture, circle.Sulistyawati Eka2015-07-08T21:09:47Z2015-07-08T21:09:47Zhttp://eprints.uny.ac.id/id/eprint/23019This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/230192015-07-08T21:09:47ZEFFECTIVITY OF PROBLEM BASED LEARNING (PBL) IN IMPROVING STUDENTS' MATHEMATICAL REPRESENTATIONMathematical representation skill is one of the goals in mathematical instruction especially in high school as well as college. Multiple representation skill is the ability to present a mathematical object (problem, statement, solution, model, etc) into a variety of notation that include (1) symbolic (algebraic form and formula); it is used in manipulating, interpreting, and operating with symbols, (2) visual: to interpret , to create, and to operate mathematical object in graph or images, (3) numerical: this is used to apply the procedure, to understand and implement the process, and to interpret the table. This study examined the effect of problem based learning in representation skills of high school students. Experimental design with pretest-posttest was applied to obtain the effect with involving 42 high school students who were studying at the third grade. Multiple representations of mathematical tests were designed to get the data. Quantitative and qualitative methods were applied to analyze the data. The result shows that problem based learning is effective to enhance representation skill of students.
Key Words: Problem Based Learning (PBL), Multiple Representations, and EffectivityTandililing Edy2015-07-08T21:06:55Z2015-07-08T21:06:55Zhttp://eprints.uny.ac.id/id/eprint/23018This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/230182015-07-08T21:06:55ZIMPROVING THE STUDENTS’ CONFIDENCE IN LEARNING MATHEMATICS THROUGH PROBLEM BASED LEARNINGThe aspect of social attitude, especially self confident is one of the main goal in the implementation of 2013 Curriculum. This aspect is greatly needed by the students since it relates to the needs of students to achieve the learning objectives of mathematics. This notion requires a particular concern to improve the mathematics learning. However the fact shows that the students’ confidence in learning mathematics, especially students of SMAN 1 Banguntapan 1 needs to be improved. This research focuses on the effort to improve the students’ self confidence in the grade X of social study program 1, SMA Negeri 1 Banguntapan.
The type of this research is a classroom action research designed in several cycles thraught following steps: (1) planning, (2) implementation, (3) observation, and (4) reflection. The data collection technique used in this research is observation and questionnaires. The instrument is a questionnaire of self confidence of the students and the sheets of learning feasibility. The results finding shows the improvement of the students’ self confidence in learning mathematics throught the implementation of problem-based learning (PBL) equipped by students’ worksheet on which stages adapted with the problem based learning (PBL), the results of the reflection of each cycle and its improvements. It is proven by the students self confidence improvement in every cycle. The data of pre-cycle showes 37.93% and it increases into 51.85% in the first cycle. For the second cycle, the students' self confidence reaches 71.43%.
Keyword: Self Confidence, Problem Based LearningSusanto Edi. Suranten2015-07-08T21:04:48Z2015-07-08T21:04:48Zhttp://eprints.uny.ac.id/id/eprint/23017This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/230172015-07-08T21:04:48ZTHE ENHANCEMENT ABILITY OF MATHEMATICAL CONNECTION IN PARALELLOGRAM MATERIAL THROUGH LEARNING BASED ON VAN HIELE THEORY IN CLASS V SDN 1 CIBATUIRENGThe ability of mathematical connection gets less teacher’s attention, especially in elementary school. But mathematical connection ability is a math skill must be had by students well. The purpose of the research is to test the superiority learning based on Van Hiele theory to improve student’s mathematical connection ability. Location of the research is SDN 1 Cibatuireng Karangnunggal district, Tasikmlaya regency. The method used is pre-experiment by collecting data technique those are test and non test. The results of the test are : 1). Increasing the student’s mathematic connection ability; 2) the implementation learning based on Van Hiele theory through some stages (information, direct orientation, explanation, free orientation, integration); 3) the student’s mathematical connection ability increased after using learning based on Van Hiele theory.
Key words: mathematical connection, learning based on Van Hiele theoryPenta Yurlita TiaraNur’aeni Eponeponalamsyah@yahoo.comHaki Pranata Oyon2015-07-08T07:25:07Z2015-07-08T07:25:07Zhttp://eprints.uny.ac.id/id/eprint/22998This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229982015-07-08T07:25:07ZMATHEMATICAL COMMUNICATION SKILLS FOR POSTGRADUATE STUDENT OF PRIMARY EDUCATION STUDY PROGRAM: A CASE STUDYThe purpose of the research is to identify which aspects of the communication skills of the postgraduate student of Primary Education Study Program that needs to be improved. The subjects of the research were 30 students of Postgraduate Student of Primary Education Study Program, State University of Yogyakarta, Indonesia, who took Mathematics course from September to December, 2014.
The instruments used to collect the data were in form of Mathematics questions/problems. There were 3 times tests over a period of September – December 2014, each consists of 3 questions. There were 4 aspects that were assessed, namely: (1) the accuracy, coherently, and clarity of the reasons used in answering the question; (2) the clarity of the drawing/illustrations used; (3) The appropriateness and the completeness of mathematical models/equations used, and (4) the accuracy of the phrase used in answering the question.
This research shows: (1) The mathematical communication skills of the postgraduate student of Primary Education Study Program, Yogyakarta State University, who were the subject of this research are classified as "medium"; (2) The accuracy, coherently, and clarity of the reasons used in answering the question and the accuracy of the phrase used in answering the question tend to be in the category of "medium" constantly; (3) The clarity of the drawing/illustrations used and the appropriateness and the completeness of mathematical models/equations used has a tendency to be included in the high category. Thus, aspects that still need to be improved mainly are: (1) ) The accuracy, coherently, and clarity of the reasons used in answering the question; and (2) The accuracy of the phrase used in answering the question.
Key words: communication, mathematics, postgraduate, primary, educationWidjajanti Djamilah Bondandj_bondan@yahoo.com2015-07-08T07:21:31Z2015-07-08T20:54:17Zhttp://eprints.uny.ac.id/id/eprint/22997This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229972015-07-08T07:21:31ZDEVELOPING INSTRUMENT TO MEASURE RELIGIOSITY AND OTHER AFFECTIVE DOMAIN IN TEACHING AND LEARNING MATHEMATICSMathematics is a universal knowledge that useful for human life. Competence in mathematics learning is not only focused on the cognitive domain, but also on affective domain. The problem that occurs is assessment difficulties in teacher-oriented of various competences. Based on various sources, the difficulties faced by teachers are an assessment to measure religiosity and other affective domain, such as self-confidence, responsibility, curiosity, honesty, discipline, and so on. This issue does not only occur in implementation of 2013 Curriculum, but also in general case. It is happened because of the teachers’ assessment. It is laid on cognitive domain only, without assessing through descriptive and qualitative. The assessment difficulty by using descriptive and qualitative was the large number of students in each classroom, so it took a long time to asses. Further, teachers need an effort to solve this problem. In this paper, the researcher explains about how to develop assessment instrument for measuring religiosity and other affective domain in teaching and learning mathematics. The first step of development starts by reviewing the theory of religiosity and other affective domain to get aspects or indicators about it. Then, the aspects or indicators that have been gotten can be developed as a kind of assessment technique which appropriate for measuring religiosity and affective domain.
Keywords: developing, religiosity, affective, learning mathematicsMardhiyana Dewi. Jailani2015-07-08T07:18:35Z2015-07-08T21:01:17Zhttp://eprints.uny.ac.id/id/eprint/22994This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229942015-07-08T07:18:35ZIMPLEMENTATION OF FLIPPED CLASSROOM STRATEGY IN MATHEMATICS LEARNING TO STUDENTS’ COGNITIVE SKILLNew learning paradigm demands change of teachers’ role in learning process mainly as facilitator, team based work, and use of education technology. Flipped classroom strategy is an alternative means of improving students’ cognitive skill in mathematics learning. Flipped classroom strategy is in line with new paradigm of mathematics learning based on constructivism. The aim of research is to know the influence of flipped classroom strategy toward students’ cognitive skills and learning activity. This research uses experiment method. A limited experiment done in a classroom of Senior High School indicates that Flipped classroom gives positive result toward the students’ cognitive skill and learning activity in mathematics learning compared to the control group.
Keywords : Flipped slassroom strategy, cognitive skill, and learning activity.Murtiyasa BudiEsti W FaridaFitriyana Ulfa Nur2015-07-08T07:11:32Z2015-07-08T20:55:30Zhttp://eprints.uny.ac.id/id/eprint/22993This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229932015-07-08T07:11:32ZMETACOGNITIVE PROMPT AS A MEANS TO IMPROVE STUDENTS’ TASK COMPREHENSIONOne of the most dominant errors made by (Indonesian) students when solving context-based PISA mathematics tasks is error in comprehending the task. This paper reports a study on improving students’ comprehension of context-based tasks. A total of 299 eight graders from six junior high schools in the Province of Yogyakarta participated in this study. The study employed a field experiment with a pretest-posttest control-group design for which we used an intervention program comprising a set of context-based tasks which were supplemented with metacognitive prompts. The result of the study shows a significant difference between the experimental group and the control group on the decrease in the total number of errors (² (1, n = 4127) = 4.149, p = .042). In comparison to their counterparts in the control group, the students in the experimental group had a better improvement regarding two aspects of task comprehension: understanding the instruction of the task and selecting relevant information.
Key words: context-based tasks; metacognitive prompts; task comprehensionWijaya Ariyadivan den Heuvel Panhuizen MarjaDoorma Michiel2015-07-08T07:07:08Z2015-07-08T20:50:34Zhttp://eprints.uny.ac.id/id/eprint/22992This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229922015-07-08T07:07:08ZCONTEXTUAL TEACHING AND LEARNING APPROACH (CTL) IN MATHEMATICS TO DEVELOP ADVERSITY QUOTIENT (AQ)CTL approach is a learning process that involves students in important activities that help students associate academic learning with real-life context. There are seven components in the CTL approach, namely: 1) contructivism, 2) inquiri, 3) questioning, 4) learning community, 5) modelling, 6) reflection, and 7) authentic assessment. It is important to know that generally students have difficulties in learning mathematics, the difference is only in levels of difficulty. In this case, potential AQ is truly needed in learning mathematics. AQ is an individual's ability to survive in the face of all sorts of trouble to find a way out, to solve various problems, reduce barriers and obstacles by changing the way of thinking and attitude towards the difficulties faced. There are four dimensions of AQ: control, ownership, range, and endurance. Based on the level of AQ, there are three types of student groups, namely: quitter, campersdan climbers. This paper studied the theory of mathematics learning, contextual teaching and learning approach (CTL), and adversity quotient (AQ).
Keywords: Learning math, contextual teaching and learning approach (CTL), and adversity quotient (AQ).Septiana Anisya2015-07-08T07:04:24Z2015-07-08T20:53:26Zhttp://eprints.uny.ac.id/id/eprint/22987This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229872015-07-08T07:04:24ZANALYSING LESSON USING VARIATION THEORY AS AN ANALYTIC FRAMEWORK IN GEOMETRY SUBJECT OF GRADE XSome Asian countries, such as China, Hong Kong, Singapore, Japan, and Korea has their dominance in the TIMSS and PISA for recent periods. It brings out the paradox since some experts of mathematics education identify that teaching learning process in those countries seems to be teacher-centered and conventional. Variation theory, promoted by Ference Marton and colleagues successfully breaks this paradox. It gives framework that the learners must experience variation in the critical feature of a concept, within limited space and time, in order for the concept to be learnable. To exemplify, this paper presents an analysis of Geometry subject of grade X based on variation theory as an analytic framework. Generally, it is used to link the theoretical and practical levels which would help teachers as facilitators in teaching learning process to get an illustration about how to operate this theory. Some steps that can be used to do this analysis are 1) Finding out what students’ ways of seeing, 2) Identifying critical features, 3) Finding the pattern of variations that can be used, and 4) Choosing strategy or approach to bring them out.
Keywords: Variation Theory, Analytic Framework, Geometry Grade XPurnama Dewi Aisyah2015-07-08T06:59:36Z2015-07-08T06:59:36Zhttp://eprints.uny.ac.id/id/eprint/22986This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229862015-07-08T06:59:36ZDEVELOPING AN ASSESSMENT INSTRUMENT OF HIGHER ORDER THINKING SKILL (HOTS) IN MATHEMATICS FOR JUNIOR HIGH SCHOOL GRADE VIII SEMESTER 1This research aims to produce a valid and reliable mathematics assessment instrument in the form of HOTS test items, and describe the quality of HOTS test items to measure the high order thinking skill of grade VIII SMP students. This study was a research and development study adapting Borg & Gall’s development model, including the following steps: research and information collection, planning, the early product development, limited try out, revising the early product, field try out, and revising the final product. The research’s result shows that the HOTS assessment instrument in the form of HOTS test items consists of 24 multiple – choice test items and 19 essay test items, based on the judgement of the materials, construction, and language is valid and appropriate to be used. The reliability coefficients of the instrument are 0.713 for the multiple choice items, and 0.920 for essays. The multiple choice items has the average of item difficulty 0.406 (average), the average of item discrimination 0.330 (good), and the distractors function well. The essay test items has the average of item difficulty 0.373 (average) and the average of item discrimination 0.508 (good).
Keywords: development, assessment instrument, Higher Order Thinking Skills (HOTS), mathematics in the junior high schoolM.Pd, M.T. Agus Budiman. Jailani2015-07-08T06:52:04Z2015-07-08T20:52:45Zhttp://eprints.uny.ac.id/id/eprint/22984This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229842015-07-08T06:52:04ZAVALAIBILITY OF TEACHER AND FACILITIES FOR LEARNING MATHEMATICS AT SECONDARY SCHOOL INDRAGIRI HILIR RIAUThis study aimed to describe the conditions of teacher and facilitities for the implementation of learning mathematics for junior and high school level in Indragiri Hilir. The findings of this study use as a reference for stakeholders in designing the policies for education to meet the commitment to educational services. The primary data in this research is collected by giving questionnaires and interviews in 20 subdistricts in Indragiri Hilir. Additional data provided by focus group discussions with principals, teachers, supervisors, Board of Education, as well as officials in the education office.The data in this study was analized quantitatively and qualitatively. In general, this finding based on the condition of the teachers availability, includes the needs and level of education, facilities include media, classrooms, libraries and laboratories in accordance with the national standards of the facilities and infrastructure. Research shows classroom availability for junior level is generally adequate, but not at the high school level. Learning facilities such as libraries, laboratories found unadequate at all levels, only vocational schools having sufficient lab facilities. In junior high school, the number of mathematics teacher meets the requirements, but not at the senior high school level, mathematics teach by non-mathematics background teachers. Not all teachers who teach junior and senior high school level had S1 certified as require by government regulation. The Indragiri Hilir local government must work harder to develop and increase the means for learning mathematics.
Keyword: Mathematics Education, Indragiri HilirRoza YenitaLutfi RahmitaNovianty Leni2015-07-08T06:47:42Z2015-07-08T21:00:30Zhttp://eprints.uny.ac.id/id/eprint/22981This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229812015-07-08T06:47:42ZDEVELOPING MATHEMATICS INSTRUCTIONAL MATERIALS ORIENTED TO CHARACTER AND HIGHER ORDER THINKING SKILL (HOTS)This research aimed to produce mathematics instructional materials for junior high school grade 8th semester 1 that is valid and practical for improving the student’s character and higher order thinking skill (HOTS). This research was a developmental research consisting of three phases: preliminary phase, designing phase, and developing phase. In the preliminary phase, contexts and problems analysis, literature review, and formulation of learning objectives were conducted. The designing phase consisted of developing the test instrument, determining the instructional strategies, media, and materials, and designing of the initial products. At the developing phase, three cycles of formative evaluation were conducted, consisting of product testing, evaluation, and product revision in each. The instructional materials produced consisted of lesson plans and student worksheets. The results showed that the instructional materials produced are valid and practical.
Key words: development, instructional materials, lesson plan, student worksheet, character, higher order thinking skill (HOTS). Jailanizailani_uny@yahoo.comMusfiqi Shin’an2015-07-08T06:44:33Z2015-07-08T20:52:02Zhttp://eprints.uny.ac.id/id/eprint/22980This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229802015-07-08T06:44:33ZTHE APPLICATION OF THE PROJECT BASED LEARNING MODELS ON THE REASONING MATHEMATICS OF THE FOURTH GRADES STUDENTS OF ELEMENTARY SCHOOL KARANGWUNI 1 IN THE IMPLEMENTATION OF CURRICULUM 2013This research aimed to describe the effect of project-based learning models on the reasoning mathematics of the fourth grade elementary school students of Karangwuni 1.
This research was a pre experimental design using one group pretest posttest conducted in one group without comparison groups. The population was 13 students of the fourth grade elementary school students of Karangwuni 1.
The results of this research showed the value of pretest before the applied project-based learning model suggested students was on the category D and D+. The category D+ as much as 6 students or with the value of 46,15% while the rest was on category D as much as 7 students or with the value of 53,84%. These results indicated the success student learning had not occurred or the value of 0% was below the value of B. The result of posttest showed all the students was on the category A+ or with the value of 100%. This percentage value exceeded the standards established 80% of students was success student learning standards was defined in the research. The results of the research using the t-test earned data tval > ttab or 629,561 > 2,064. Accordingly, the model of project-based learning had a positive and significant effect on the mathematical reasoning of the fourth grade elementary school students of Karangwuni 1.
Keywords: project-based learning & reasoning mathematics students.. SatrianawatiRahardini Anindita2015-07-08T06:41:16Z2015-07-08T06:41:16Zhttp://eprints.uny.ac.id/id/eprint/22979This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229792015-07-08T06:41:16ZUNDERGRADUATE STUDENTS’ PROOF CONSTRUCTION ABILITY IN ABSTRACT ALGEBRAThe opinion of mathematics education expert toward the necessity of introducing mathematical proof to be thought at all levels was increased. Number of mathematics teacher in America conducted intensive discussion about whether mathematics proof should be included or excluded in mathematics curriculum. Teachers agree on the importance of proof and on the necessity for students to develop the skills needed to construct proofs.
However many students of all levels of education face serious difficulties with constructing mathematical proof. Whereas, the limitedness on proving ability would influence on learning other advanced mathematics such as real analysis, abstract algebra, and others. That condition would hamper the development of students’ reasoning and others mathematical thinking abilities.
The objective of developing proof methodology was to improve students’ ability on understanding mathematical proof, and proof constructing of mathematical statements. Some approaches had been developed, among them was concept of generic proof. Generic proof method of example level was explained of a concepts in general based on a specific example or case. The purpose of this paper is to categorizing and describing the different types of processes that undergraduate students use to construct proofs. This study involved 87 undergraduate students and two kinds instruments those proof reading test and a proof construction test.
Keywords: mathematical proof, geometry. Risnanosanti2015-07-08T06:38:24Z2015-07-08T20:59:32Zhttp://eprints.uny.ac.id/id/eprint/22978This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229782015-07-08T06:38:24ZTHE COMPARISON OF EFFECTIVENESS OF PROJECT-BASED LEARNING AND PROBLEM-BASED LEARNING ON THE SPACE MODEL OF FLAT SIDE IN TERMS OF ACHIEVEMENT OF LEARNING OBJECTIVES STUDENTThis study aims to describe: (1) the effectiveness of project-based learning (PjBL) in the subject matter of geometry flat side in terms of the attitude of confidence, achievement of learning mathematics, and problem solving skills; (2) the effectiveness of problem-based learning (PBL) in the subject matter of geometry flat side in terms of the attitude of confidence, achievement of learning mathematics, and problem solving skills; (3) the comparison in the effectiveness between project-based learning and problem-based learning in the subject matter of geometry flat side in terms of the attitude of confidence, achievement of learning mathematics, and problem solving skills.
The data were analyzed descriptively and statistically. The kind of this research quasi-experiment using design control group non-equivalent. Instrument used in the form of test and non-test. The result of this study that are the significance level 5%, it can be infered that (1) project-based learning is effective in the subject matter of geometry flat side in terms of the attitude of confidence and problem solving skills; (2) problem-based learning is effective in the subject matter of geometry flat side in terms of the attitude of confidence, achievement of learning mathematics, and problem solving skills; (3) problem-based learning is more effective than project-based learning in the subject matter of geometry flat side in terms achievement of learning mathematics.
Keywords: project-based learning, problem-based learning, attitude of confidence, achievement of learning mathematics, problem solving skills.Ismail raoda2015-07-08T06:36:09Z2015-07-08T06:36:09Zhttp://eprints.uny.ac.id/id/eprint/22977This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229772015-07-08T06:36:09ZCONSTRUCT VALIDITY OF CRITICAL THINKING SKILL INSTRUMENT IN TEACHING MATHEMATIC IN JUNIOR HIGH SCHOOLThis study aims to evaluate the construct validity of cognitive instruments of critical thinking in teaching mathematics in junior high school. The instrument was developed using a method that allows to design an obvious question to measure both the content and critical thinking skills. Critical thinking instrument consists of 42 multiple choice questions with four alternative choices. The study involved 656 students from junior high school in Yogyakarta. The findings indicate that critical thinking has satisfactory construct validity by five factors extracted and confirmed by confirmatory factor analysis. CFA revealed the model fit. (CFI = 0.97; RMSEA = 0.059; IFI = .0.97; PNFI = 0.90, and 2/ df =3.10)
Keywords: construct validity, critical thinkingRosnawati R.rosnawati_uny@yahoo.comKartowagiran Badrun2015-07-08T06:32:11Z2015-07-08T20:58:53Zhttp://eprints.uny.ac.id/id/eprint/22973This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229732015-07-08T06:32:11ZDEVELOPING STUDENT WORKSHEET OF DIFFERENTIAL EQUATIONS COURSES FOR HIGHER EDUCATION WITH LESSON STUDYThe purpose of this study was to produce student worksheet, which have quality to use in the differential equations learning process. The main method involved a research and development study. It developed student worksheet with lesson study, which consisting of four primary steps: plan, do, see, and reflect. The data collecting instruments included student worksheet validation sheets, observation sheets, questionnaires, and tests. The collected data were those on the quality of the developed product: the validity, reliability, and effectiveness.
The result indicated that student worksheet was valid, practical, and effective to use in the differential equations learning process.
Keywords: student worksheet, higher education, lesson studyUtami Niken Wahyuasa_ku2004@yahoo.com2015-07-08T05:10:42Z2015-07-08T20:58:13Zhttp://eprints.uny.ac.id/id/eprint/22968This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229682015-07-08T05:10:42ZDEVELOPMENT AND EFFECT OF MULTIMEDIA LEARNING ARITHMETIC TO IMPROVE ELEMENTARY STUDENTS’ MATHEMATICAL ABILITIESThe second phase of this research is develop and measure multimedia learning arithmetic to improve elementary students' mathematical abilities based on the results of the first phase of the study. Multimedia learning arithmetic made, conducted using 10 indicators that is communicative, creative, simple, unity, the depiction of objects in the form of a representative image, the selection of the appropriate color, typography, layout, moving visual elements, and navigation. Barriers in developing multimedia learning arithmetic is collective bargaining entire team to create and measure multimedia is in the process of realizing a multimedia representative; find professionals who are willing to make a multimedia learning arithmetic representative; practical power of multimedia learning arithmetic makers who understand the character of elementary school students in learning arithmetic. Nevertheless multimedia learning arithmetic can improve elementary students' mathematical ability, and better than the learning outcomes of students who are learning without the use of multimedia learning arithmetic.
Keywords: Multimedia, Arithmetic. Karlimaharli.karlimah@gmail.com2015-07-08T05:08:05Z2015-07-08T05:08:05Zhttp://eprints.uny.ac.id/id/eprint/22967This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229672015-07-08T05:08:05ZTHE REFLECTIVE PEDAGOGICAL APPROACH IN MATHEMATICS LEARNINGThis paper aims to describe the reflective pedagogical approach in mathematics learning. It will discuss about the importance of reflection in learning, the models of reflective learning, and the steps of mathematics learning by using reflective pedagogical approach. Based on the results of theoretical studies, researchers define reflective pedagogical approach as a learning approach that emphasizes the importance of reflection in the learning process. The steps of learning mathematics by using reflective pedagogical approach includes experience (practice), reflection (reflection in practice), action (revised practice), evaluation, general reflection (reflection on practice).
Keywords: Reflective Pedagogical Approach, Mathematics LearningSriyanto H.J.hj_sriyanto@yahoo.co.id. Jailani2015-07-08T04:44:39Z2015-07-08T20:57:24Zhttp://eprints.uny.ac.id/id/eprint/22963This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229632015-07-08T04:44:39ZTHE DIFFERENTIATE BETWEEN THE RESULT OF MATHEMATICS USING METACOGNITIVE APPROACH AND MECHANISTIC APPROACH IN SET (HIMPUNAN)Generally, students do not active in this learning teaching mathematics in the class. The less of effectiveness will influence and satisfy toward the result of mathematics. Because of that, we find other approach that can make students become an active learner. For example: using metacognitive approach. The teaching learning using metacognitive approach is embed the awareness to students how to build, monitor, and control about what they have known, what they needed to do it, and how to do it. The aim is to know whether or not the differentiate between the result of mathematic for students who using metacognitive and mechanistic approach. The kind of research is quasi experiment. This research will hold at SMP Negeri 2 Pabelan grade VII C which called experiment class. It will do using metacognitive approach and then grade VII B which called control class. It will do using mechanistic approach. The result of this research shows that metacognitive approach is better than mechanistic approach. The teaching learning using metacognitive approach is better because this approach is embedding the awareness of students in the teaching learning mathematic in the class. It shows that students more aware to learn in the class, they also more concentration and listen the teacher’s explanation, and they also find their new problem and how to solve their problem in teaching learning mathematic.
Keywords: metacognition, metacognitive approachSetyadi Danang2015-07-08T04:38:10Z2018-08-25T02:19:50Zhttp://eprints.uny.ac.id/id/eprint/22955This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/229552015-07-08T04:38:10ZTHE STUDY OF INTEGERS AND FRACTION IN THE MATHEMATICS BOOK 7TH GRADE IN CURRICULUM 2013 AND THE LEARNING MEDIA USEDThe implementation of curriculum 2013 insists teachers to be creative in teaching. One of the things that must be done is preparing learning equipment including learning aids, so the learning objective can be reached. Students book or teacher book have been prepared by the government, but the teacher must be critical to the book and critical in preparing the media needed. This article aims at analyzing critically the material of integers and fraction in student book 7th grade curriculum 2013 and discussing the appropriate learning aids. The materials of integers include addition, reduction or substraction, and multiplication, mainly on negative integers, while the materials of fraction include addition, substraction, multiplication, and fraction division. The learning aids discussed in this study cover: paired card media, number line block, number line straw, equality of ratio number dominoes and fraction strip.
Key words: integers, fraction, learning aidsAbd. Qohar