TY - JOUR A1 - Djamilah Bondan, Widjajanti PB - Faculty of Mathematics and Sciences Yogyakarta State University Y1 - 2015/// N2 - The 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, education SN - 978-979-96880-8-8 ID - UNY22998 JF - Proceeding of International Conference On Research, Implementation And Education Of Mathematics And Sciences 2015 (ICRIEMS 2015), Yogyakarta State University, 17-19 May 2015 UR - http://fmipa.uny.ac.id TI - MATHEMATICAL COMMUNICATION SKILLS FOR POSTGRADUATE STUDENT OF PRIMARY EDUCATION STUDY PROGRAM: A CASE STUDY AV - public ER -