Pengembangan Perangkat Pembelajaran Bangun Ruang Di SMP Dengan Pendekatan Problem-based Learning

This study was aimed to produce space learning kits with problem-based learning approach in Junior High School which was valid, practical, and effective based on achievement of basic competence, critical thinking skill, and attitude towards mathematics. This study was and development study using the 4D development model that included defining, designing, developing, and disseminating phase. This study produced valid, practical, and effective space learning kits that consisted of syllabus, lesson plans, students\u27 worksheets, and assessment tests that included test of basic competence achievement and critical thinking test. Kits validity gets very good category from expert assessment. Kits practically gets very good category from teachers assessment, students assessment, and observation of learning implementation. The aspect of effectiveness was seen from achievement minimal 75% of the student pass the minimum score for achievement of basic competence and critical thinking skill, and more than 80% of student have attitude toward mathematics in high category. The result of experiment activity shows that the developed learning kits more effective than conventional learning kits based on achievement of basic competence, critical thinking, and attitude toward mathematics