<![CDATA[The background of this research is the lack of concrete learning media used in the learning process. This study aims to produce valid, practical, and effective Pop-Up Book BaRung (Three-Dimensional Shapes) learning media for fifth-grade elementary school students. The research design uses the ADDIE development model (Analyze, Design, Development, Implementation, Evaluation). This study was conducted in grade V at SDN Lontar 481 Surabaya. The results showed a validity percentage of 82.5%, categorized as valid by media experts, and 90.76%, categorized as very valid by material experts. The practicality test yielded results of 88.77% from student questionnaires and 100% from teacher questionnaires, both categorized as very practical. The effectiveness of the media was demonstrated by a t-test showing a significant difference between pre-test and post-test scores, with an average N-Gain score of 0.624, categorized as moderate. This research produced Pop-Up Book BaRung (Three-Dimensional Shapes) learning media that is valid, practical, and effective. Keywords : Pop-Up Book BaRung Media, Effectiveness, Solid Geometry]]>
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