This study aimed to develop teaching materials to improve the mathematical understanding of the Pythagorean theorem material by using the development of teaching materials through the GeoGebra-assisted Problem Based Learning (PBL) approach. This study uses the Borg & Gall model's research and Development (RnD) development method with the Borg & Gall model. The researchers collected data through…
peningkatan dan pencapaian kemampuan berpikir kreatif dan self confidence yang pembelajarannya menggunakan pendekatan realistic mathematics education dan kooperatif tipe jigsaw hasilnya jauh lebih baik