Pengembangan Perangkat Pembelajaran Dengan Pendekatan Matematika Realistik Pada Materi Koordinat Kartesius Untuk Kelas VIII SMP

This development research aims to result mathematics learning tools in the form of Learning Implementation Plans and Student Worksheets with a realistic mathematics approach on Cartesian coordinate material tested for validity. The development of learning tools in this study uses the ADDIE model which has been modified into 4 stages, namely; 1) Analysis; 2) Design; 3) Development; and 4) Evaluation, without Implementation stage. The research data collection instrument was in the form of a learning device validation sheet. Analysis of the data used is descriptive that describes the level of validity of the product. The data was obtained from the results of validation by 2 lecturers of mathematics education at Islamic University of Riau and 2 mathematics education teachers. The results obtained in the form of validation results with the Guttman scale on the aspect of completeness of the RPP components of 100% with very valid criteria, then the results of RPP validation with a Likert scale on other assessment aspects of 81,07% with very valid criteria, and the results of validation of 83,33% with very valid criteria. Thus, it can be concluded that this development research resulted in learning tools which were tested for validity