Application of Cooperative Learning Type Group Investigation to Improve Physics learning Outcomes in Vocational Schools

Abstract

This study proposes to analyze the differences in learning outcomes of pupils, who learn cooperative learning models of group investigation and conventional learning. The research sample consisted of class Xa (30 people) who learned the cooperative learning model of the group investigation model and class Xb (30 people) taught using conventional learning models with the topic of learning is basic electronic (capacitors). The sampling technique uses random sampling with a non-equivalent control group design. Data collection techniques consisted of written tests, observation sheets and documentation. Meanwhile, research instrument used achievement test (objective criteria) in the form of multiple-choice questions that comprise as many as 25 of the given level (C1), understanding (C2) applying (C3) and analyzed. Students' test results were analyzed using descriptive statistical data analysis and inferential statistical data analysis. The analysis results obtained that there is a difference of learning outcomes between the experimental class and a control class with an average of 80.8 to 69.6 for the control class and experimental class. From the analysis, it was found that there was no significant difference between the experimental and control classes based on the N-gain value. So it can be concluded that the group investigation learning model does not have a significant effect on improving student learning outcomes.