Developing Differentiated Learning Devices to Heighten Student Learning Outcome on Light Concepts at SMP Negeri 1 Kwandang

Research development aims to produce differentiated learning tools that are valid, practical, and effective on the sub-theme of Light. The research model uses the ADDIE model. The research was carried out in one of the North Gorontalo Regency Middle Schools in the 2021/2022 academic year. The results of the research show that the differentiated learning tools developed meet the valid, practical, and effective requirements. The average percentage of expert validation results on RPP, LKPD, teaching materials, and learning achievement test instruments with respective categories is around 94%, 94%, 90%, and 90%. The results of the analysis of the implementation of learning and learning activities of students on good criteria were around 96% and 94%, respectively, and the percentage of students' responses in the trial was around 93%. The mean final test score of learning outcomes for each differentiated group has increased, namely for students with high learning readiness (79.43), moderate learning readiness (81.06), and low learning readiness (80.68) with an average percentage of student learning completeness about 94%. Furthermore, the mean N-Gain results of the three differentiated groups were in the high category, above 0.7. with the respective results for groups with high learning readiness at 0.74, groups with moderate learning readiness at 0.77, and groups with low learning readiness at 0.77.