<![CDATA[This study aims to develop a Jagel-based learning media for the Science and Social Studies in Grade III at SDN 3 Purwawinangun. The background of this research is the lack of optimal utilization of available technology such as Chromebooks in learning. The method used is Research and Development (R&D) with the ADDIE model, consisting of Analyze, Design, Development, Implementation, and Evaluation. Data were collected through questionnaires and tests involving 21 students. The developed media was validated by material experts (96%), media experts (93%), and the class teacher (90%), all categorized as “Very Eligible.” The average pretest score was 44.76, which significantly increased to 96.19 in the posttest. The Wilcoxon Signed-Rank test showed a significance value of 0.000 (< 0.05), indicating a statistically significant difference. The N-Gain score reached 0.95 or 95.01%, classified as “High.” These results prove that the Jagel-based media effectively improves students’ understanding of ecosystem concepts and supports interactive, engaging learning aligned with the Merdeka Curriculum.]]>
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