<![CDATA[This study aims to develop and evaluate the Mathematics Spinning Wheel as an instructional medium to enhance the learning outcomes of second-grade elementary school students in arithmetic operations, specifically addition and subtraction. Employing a research and development (R&D) methodology, the study adopts the ADDIE model, which consists of five phases: analysis, design, development, implementation, and evaluation. The research participants comprised 28 second-grade students from SD Negeri 211 Palembang. Data collection instruments included observations, interviews, validation questionnaires completed by subject matter and media experts, practicality questionnaires from teachers and students, and learning outcome tests. Validation results indicated a very high level of feasibility, with an average score of . Practicality assessments showed the media was rated as highly practical, receiving scores of from students and from teachers. Effectiveness testing revealed a significant improvement in students’ average scores, from in the pre-test to in the post-test, with classical completeness increasing from to . These findings demonstrate that the Mathematics Spinning Wheel is a valid, practical, and effective instructional medium. It offers a fun and interactive alternative for mathematics learning and holds potential for further development across different topics and educational levels.]]>
