THE IMPLEMENTATION OF PROBLEM BASED LEARNING MODEL ASSISTED BY GEOGEBRA SOFTWARE TO IMPROVE STUDENTS’ MATHEMATICAL PROBLEM-SOLVING ABILITY IN GRADE X AT SMA NEGERI 8 MEDAN

This research aims to describe the increase in the problem solving skills of SMA Negeri 8 Medan students with the implementation of the Problem-Based Learning model assisted by Geogebra. This research is a classroom action research which consists of 2 cycles with each cycle consisting of 2
meetings. The subjects of this study were students of class X IPA 2 of SMA Negeri 8 Medan with a total of 36 students. Data collection techniques used tests of students' problem solving abilities and teacher observation sheets. The results of this study indicate an increase in students' problem-solving skills in class X IPA 2 after the implementation of the problem-based learning model assisted by Geogebra. Based on the research results it is known that the average problem-solving abilities of students in the first cycle of 57.87 and in the second cycle 76.39 and the observation result was the very good category. By increasing the average test results of each cycle and achieving the classical completeness criteria, it can be concluded that learning with the Problem-Based Learning model assisted by Geogebra can improve the problem solving abilities of students of SMA Negeri 8 Medan.