<![CDATA[This research aims to: (1) develop a science e-module based on STEM-integrated ethnoscience that enhances the critical thinking skills of junior high school students; (2) determine the practicality of the developed e-module; (3) assess the effectiveness of the developed e-module in enhancing the critical thinking skills of junior high school students. This study employed a Research and Development approach using the 4D model which includes Define, Design, Develop, and Disseminate. The product trial, conducted at MTsN 4 Gunungkidul, adopted a before-after design and involved Class VIII A students selected through purposive sampling. The instruments used included e-module validation sheets, student response leaflets, and pretest-posttest sheets. Data analysis techniques encompassed a 4-point scale evaluation for e-module validation, a 5-point scale evaluation of e-module practicality based on student responses, paired sample t-tests and effect size testing to gauge the effectiveness of the e-module in enhancing critical thinking skills. The research findings indicate that: (1) The developed e-module is highly suitable for use in science education; (2) The developed e-module is practical for use in science education; (3) The developed e-module effectively enhances the critical thinking skills of junior high school students.]]>
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