<![CDATA[This development study aimed to produce an ethnoscience-based E-Module to improve eighth-grade students’ learning outcomes on the topic of Vibrations and Waves at SMP Negeri 6 Sengkang. The research employed the 4-D development model and was tested using a quasi-experimental design with a nonequivalent control group involving (58 students: 29 experimental class and 29 control class). The study sought to determine: (1) the validity of the ethnoscience-based E-Module, (2) its practicality in classroom use, and (3) its effectiveness in improving student learning outcomes. The results showed that the E-Module achieved a content validity score of 1 (valid category). Its practicality was rated very practical based on educator responses (100%) and student responses (89%). Effectiveness testing yielded an N-Gain score of 0.67, categorized as moderate and indicating that the E-Module is fairly effective in enhancing learning outcomes. Overall, the findings suggest that the ethnoscience-based E-Module is valid, practical, and effective for improving students’ understanding of Vibrations and Waves]]>
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