<![CDATA[This study aims to analyse the effectiveness of Genially-based interactive learning media in improving junior high school students' mathematics learning outcomes in Social Arithmetic. The background of this study is based on the need for digital learning media that can visualise abstract concepts in a more concrete and interesting way. The study used a quantitative approach with a One-Group Pretest–Posttest pre-experimental design. The sample of the study was 31 seventh-grade students. The research instrument was a pretest and posttest given before and after the Genially-based learning intervention. Data were analysed using the N-Gain test to analyse the effectiveness of improving learning outcomes. The results showed that the total student pretest score of 1128 increased to 2612 in the posttest, with an average increase of 47.87 points. The N-Gain value of 0.75 is included in the high category, which means that the use of Genially is effective in improving student learning outcomes in Social Arithmetic. These findings reinforce that technology-based interactive learning media can significantly improve the understanding of mathematical concepts. This study provides implications that Genially is worthy of being integrated into mathematics learning because it can improve student motivation, understanding, and learning outcomes.]]>
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