%V 2 %T EFECTIVITY OF JOB SHEET DEVELOPED FOR MACHINING PRACTICAL AT SMK MA’ARIF SALAM MAGELANG %J E-Jurnal Pendidikan Teknik Mesin %A Nugroho Wahyu Isti %X Abstract This study aims at knowing efectivity of job sheet developed for machining practice. This study was a quasi-experimental with non-equivalent control group design. The samples were XI MA class as a control group and XI MB class as an experimental group. The data were collected using pretest-posttest results and then analyzed using t-test. The experiment result shows that mean score of control group raise up from 69,16 to 80,08. T-test result indicate that implementation of job sheet developed was statistically effective. Keywords: efectivity, job sheet, machining practical %N 2 %L UNY19004