Effect of Problem Solving Models on Concept Mastery and Student Learning Outcomes about Biology in Junior High Schools

This study aims to determine the effect of the application problem solving models on the students’ masteryof concepts and student learning outcomes about biology at class VIII SMP Negeri 16 Palu. This type of research is quasi-experimental. The study population was all grade VIII students of SMP Negeri 16 Palu in the 2019/2020 academic year, totaling 128 students. The sample of the study was students of class VIIIA as an experimental group with total of 32 students and class VIIID as a control group with total of 32 students. The sample was determined by cluster random sampling technique. Data analysis was performed using the t test (t test) and the Mann Whitney U test supported by the SPSS for Windows 21 program.