Penerapan Strategi Pembelajaran Aktif College Ball Untuk Meningkatkan Aktivit…

The research aims was to improve the student activity and achievement used College Ball learning strategy on ion equilibrium subject and ph of buffer solutions in class XI IPA 1 of SMAN 9 Pekanbaru in academic year 2018/2019. This research was an action research with three cycle design Each cycleconsisted of two meetings included four stages of implementation: planning, action, observation, and…