Pengembangan Perangkat Pembelajaran Matematika Dengan Menggunakan Model Pembelajaran Discovery Learning (PENEMUAN) Untuk Siswa Kelas X IPA SMA

This study aims to produce a mathematical learning device with a discovery learning model on the sine cosine rule material in class X science that has been tested for validity. The development of learning tools in this research uses the Discovery Learning model. This is because the research was conducted during the Covid-19 pandemic. The data collection instruments used in this study were the RPP validation sheet and the LKPD validation sheet. The data collection technique used a note- taking technique in the form of a validation sheet which was given to 3 validators, namely 2 Mathematics education lecturers, FKIP UIR and 1 Mathematics teacher. The results of the study obtained from the validation of the lesson plan were 88.11% with a very valid category. The result for LKPD validation of 88.18% with a very valid category. Based on this development research, it produces Mathematics learning tools using the Discovery Learning learning model which has been tested for validity