Effectiveness of E-LKPD Sound Waves using the Discovery Learning Model on Student Learning Outcomes

Abstract

Learning physics on the subject of sound waves remains a challenge because abstract concepts are often difficult for students to understand. This study aims to test the effectiveness of using E-LKPD sound waves using a Discovery Learning model that has been revised in accordance with the Merdeka Curriculum on student learning outcomes in cognitive and psychomotor aspects. The research method used is quasi-experimental with a posttest only control group design. The research sample consisted of two Grade XI Fase F classes at SMA Negeri 3 Payakumbuh, namely the experimental class that used Discovery Learning-based E-LKPD and the control class that used the Discovery Learning model without E-LKPD. The research instruments were multiple-choice tests to measure cognitive aspects and science process skill observation sheets for psychomotor aspects. The results showed that the average posttest score for the experimental class was 89.2, which was higher than that of the control class, which was 73.7. In terms of psychomotor skills, the average score of the experimental class was 78, which was also higher than that of the control class, which was 67.5. The t-test showed that the t-count was greater than the t-table, indicating a significant difference in both aspects. It was concluded that E-LKPD using the Discovery Learning model was effective in improving students' cognitive learning outcomes and science process skills.