Pengembangan Perangkat Pembelajaran Matematika Dengan Metode REER Tutoring pada Materi Trigonometri kelas X SMA PGRI Pekanbaru

This study aims to produce mathematics learning tools in the form of a syllabus, lesson plans (RPP), and student worksheets (LKPD) using peer tutoring methods in senior high schools that have been tested for validity. The development of learning tools in this study uses the ADDIE development model, namely: 1) Analysis, 2) Design, and 3) development. The data collection instrument in this study used a syllabus validation sheet, RPP validation sheet and LKPD validation sheet. The data collection technique used was data validation from 2 lecturers of FKIP Mathematics, Islamic Universityof Riauand 2 Mathematics Teachers at SMA PGRI Pekanbaru. The analysis technique used is data validation analysis. In this study, research was unable to carry out extensive research because of the Covid-19 disease outbreak so that the study only reached the validity test stage. From the results of the validity test, the results of the validation of the syllabus were 93.02% with very valid information, the results of the validation of the RPP were 96.36% with very valid information, and the results of the validation of the LKPD 95.80% with very valid information. So that based on the results of this study, a valid mathematics learning device with the Peer Tutoring Method in Senior High Schools is obtained