Development of Learning Devices through Cooperative Learning Model Type of Group Investigation Based on Batak Culture to Improve Physics’ Problem Solving Skills and Student’s Teamwork

摘要

The purposes of this study were to describe the validities, practicities and effectiveties of learning devices through cooperative learning model type of group investigation based on Batak culture and to analyze the improvement of problem solving skills of physics and student’s teamwork by applying learning devices through cooperative type group investigation based on Batak culture. This research is Research and Development (R & D) by using 4-D model included of define, design, develop, and disseminate stages proposed by Thiagarajan. Learning devices are developed in the form of Learning Implementation Plan (RPP), Student Worksheet (LKS), student’s book, teacher’s book and problem solving skill of physics instrument on geometric optical materials and optical instruments and questionnaire of students’ teamwork. The subjects in this study were students of class X MIA-1 SMA Negeri 6 Padangsidimpuan. The results of these research shows that the learning devices through cooperative learning model type of group investigation based on Batak culture are validity, practical and effective and the problem solving skills of physics and student’s teamwork by applying the learning devices using cooperative learning model type of group investigation based on Batak culture are increase.