Pengembangan Perangkat Pembelajaran Matematika dengan Strategi The Power Of Two Pada Materi Bangun Ruang Sisi Datar Untuk Siswa Kelas VIII SMP

This study aims to produce mathematics learning tools in the form of lesson plans (RPP) and student worksheets (Lkpd) with the power of two strategy in junior high schools that have been tested to be very valid. This research learning device uses the R&D development method using the ADDIE model, namely design, analysis, and development. The data instruments of this study were the RPP validation sheet, LKPD validation sheet and teacher response questionnaires. to measure the validity of 2 lecturers of mathematics education and 2 mathematics teachers of SMP Negeri 6 Siak Hulu. The technique used is validation data analysis. from the results of the study obtained validation results 87.67 with a very valid category and lkpd 86.26 with a very valid category. based on this research, it was obtained that the mathematics learning device with the power of two strategy on the flat-sided geometry material in junior high school was very valid so that this learning device resulted in a proven learning device for its validity