Effectiveness of E-Worksheet Renewable Energy on STEM-Project Based Learning to Improve High School Students’ Critical Thinking Skills and Collaboration Skills

Abstract

The topic of renewable energy is one of the fundamental aspects in physics education, but many students have difficulty in understanding its abstract concepts. The purpose of this study is to determine the effectiveness of Renewable Energy E-worksheet in STEM project-based learning, which is presented to students and operated through devices. The research model used was a quasi-experiment with a one group pre-test post-test design involving 50 students of class X Phase E selected through randomized cluster sampling. This study used an experimental class and a control class with different learning activities. Data was collected through tests and questionnaires before and after treatment, focusing on students' critical thinking skills and collaboration on renewable energy material. Based on the results of the analysis, it was found that there were still problems in developing students' critical thinking and collaboration skills. The results showed that through the use of Renewable Energy E-worksheet for STEM-Project-Based Learning, significant results were obtained in improving critical thinking and collaboration skills in the experimental class. Data from pre-test and post-test results were tested and proven to be normally distributed and homogeneous with a significance value above 0.05. The N-Gain value of critical thinking ability in the experimental class was 0.72 and the N-Gain value of collaboration ability was 0.75. In the control class, the N-Gain value of critical thinking skills was 0.52 and the N-Gain value of collaboration skills was 0.46. The use of Renewable Energy E-Worksheet in STEM Project-Based Learning helps improve critical thinking skills and collaboration skills.