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All Journal KARST : Jurnal Pendidikan Fisika dan Terapannya
Fahrunnisa
Universitas Muhammadiyah Makassar, Indonesia
Computer Science & IT Education Materials Science & Nanotechnology Physics Other

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Improvement of understanding of physics concepts in straight motion materials after the application of the Discovery Learning model Fahrunnisa; Pertiwi
Karst: Jurnal Pendidikan Fisika dan Terapannya Vol 9 No 1 (2026): Karst: Jurnal Pendidikan Fisika dan Terapannya
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Muslim Maros

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46918/karst.v9i1.3484

Abstract

This study aims to analyze the improvement of students' understanding of physics concepts in straight motion materials after the application of the discovery learning model. The research uses a pre-experimental method with a one-group pretest-posttest design. The sample consisted of 34 students of class X at one of the public high schools in Makassar City who were selected through purposive sampling. Data was collected using a two-tier concept understanding test of 20 items that had been validated and had a KR-20 reliability of 0,82. Learning is carried out through the stages of stimulation, problem statement, data collection, data processing, verification, and generalization. Data were analyzed using descriptive statistics, Shapiro-Wilk normality test, paired sample t-test, Cohen's dz, and normalized gain (N-gain). The results showed that the average score increased from 52,35 in the pretest to 78,65 in the posttest. The paired sample t-test showed a significant difference between the pretest and posttest scores, t (33) = 12,94, p < 0,001, with an average N-gain of 0,55 (medium category). These findings show that the application of the discovery learning model is able to improve students' understanding of physics concepts in straight motion materials.
Co-Authors Pertiwi