<![CDATA[Biology learning at the junior secondary level often presents challenges due to the abstract nature of physiological concepts, particularly those related to the human excretory system. Conventional instructional approaches frequently fail to actively engage students and support meaningful conceptual understanding. Therefore, this study aimed to develop and validate puzzle-integrated Game-Based Learning (GBL) biology e-media for teaching the human excretory system. This study employed a Research and Development (R&D) approach using the 4D model consisting of Define, Design, Develop, and Disseminate stages, limited to the Develop stage. The developed product was evaluated through expert validation involving four validators using a five-point Likert-scale instrument covering aspects of content relevance and accuracy, presentation, language, visual quality, media simplicity, media presentation, and media integration. The validation data were analyzed using descriptive quantitative techniques supported by qualitative feedback from validators. The results indicated that the developed e-media achieved an overall validity percentage of 87%, categorized as very valid. The highest score was obtained in the visual and graphic quality aspect (88.80%), while the lowest score was found in language clarity (85.80%); however, all assessed aspects remained within the very valid category. These findings suggest that the puzzle-integrated Game-Based Learning biology e-media possesses strong theoretical feasibility and is appropriate for use as a supporting medium in biology learning. Further studies are recommended to examine the practicality and effectiveness of the developed media in real classroom settings.]]>
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