Pengembangan Modul Berbasis Problem Solving Tipe Ideal Pada Mata Pelajaran Ki…

The purpose of this research was develop module based on problem solving in colloid of chemistry in senior high school subject in terms of valid based on the content properness, serve, language, and graphic. The type of this research was research and development (R&D) with development process of 4-D model which include Define, Design, Develop, and Disseminate. This research was to develop p…