<![CDATA[This study aimed to develop Puzzle Detektif, a learning medium designed to assess fifth-grade elementary school students’ critical thinking skills in Science and Social Studies (IPAS) learning. The study employed a Research and Development (R&D) method using the ADDIE model, consisting of Analysis, Design, Development, Implementation, and Evaluation stages. The subjects were 24 fifth-grade students at SDN Talun Sumedang. Data were collected through interviews, critical thinking ability questionnaires, media and material expert validation sheets, student and teacher response questionnaires, and evaluation tests based on Robert H. Ennis’s critical thinking indicators. The results showed that Puzzle Detektif was categorized as highly feasible, with validation scores of 88% from media experts and 89% and 88% from material experts. Student responses reached 88%, while teacher responses reached 86%, both categorized as highly feasible. The evaluation results showed that students’ overall critical thinking ability reached an average of 82%, with individual indicators ranging from 75% to 91%. The study was limited to one school with 24 students; therefore, the generalizability of the findings remains limited to similar contexts. Puzzle Detektif offers a hybrid learning media innovation integrating problem-solving and simple investigation activities to help teachers assess students’ critical thinking skills in IPAS learning.]]>
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