This study aims to develop and determine the feasibility and effectiveness of learning media (Solar System) on the solar system material for grade VI students of SD Negeri 79 Palembang. This study uses the Research and Development (R&D) method with the ADDIE model approach which includes the stages of Analysis, Design, Development, Implementation, and Evaluation. The validation results show that the developed media obtained a feasibility score of 100% from material experts, 92.9% from media experts, and 92% from practitioners, which is included in the "Very Feasible" category. The one-to-one practicality test showed an average score of 95.2%, and the small group test showed a score of 83.4% and the field test showed a score of 83.5%. Based on these results, the solar system media was declared "very feasible" and effective in improving students' understanding and interest in learning the solar system material.
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