efektivitas model pembelajaran problem based learning (pbl) berbantuan video …

This research aimed to determine the effect of the Problem Based Learning (PBL) model assisted by instructional videos on student learning outcomes. The population consisted of all 150 students of Grade XI Social Studies at SMA Negeri 15 Pekanbaru. A total of 70 students were randomly selected as the sample and divided into two groups: the experimental class (XI G) and the control class (XI …