pengembangan modul ajar berbasis problem based learning topik aritmatika sosi…

This research is a development research (R&D) with the aim of producing a Problem Based Learning (PBL) based teaching module on the topic of social arithmetic to facilitate mathematical problem solving skills (KPMM) of phase D students that have met the valid and practical requirements. This development research uses a 4D development model with development stages, namely defining, designin…