THE INFLUENCE OF PROBLEM-BASED LEARNING AND EVERYONE IS A TEACHER HERE MODELS ON HIGHER ORDER THINKING SKILLS IN ENVIRONMENTAL POLLUTION TOPICS

The purpose of this study was to determine the influence of problem based learning and everyone is a teacher here models on student’s higher order thinking skills in environmental pollution topics. The population of this study was all first year of junior high students at State Junior High School 1 North Rantau 2016/2017. Academic Year, which are consist of 373 students in total, ranged from classes VII1 to VII9. Three classes were taken as sample by cluster random sampling technique with 34 total students in every class. Higher order thinking instrument used was essay test of environmental pollution topics. Data analysis technique used was analysis of covariate (ANACOVA) with α = 0.05. The results were ANACOVA showed that learning models significantly influence on higher order thinking (F = 1225.53; P = 0.000). Average score of higher order thinking in problem based learning class give 3.71 point influence higher than everyone is a teacher here class and 39.94 higher than conventional one. Everyone is a teacher here class give influence 36.23 higher compared to conventional class. In CONCLUSION, there were significant influences of both models on student’s higher order thinking skills in environmental pollution topics.