<![CDATA[This study aims to determine the development of puzzle media on the learning outcomes of grade III students at SDN 15 Sungai Pinyuh. The research method used is the development research method (Research & Development) while the research model used, namely 4-D with the stages of design, definition, development and dissemination, The subjects in this research are grade III students of SDN 15 Sungai Pinyuh, totaling 45 students consisting of 24 male students and 21 female students. The validation technique used is in the form of collecting data on learning outcome tests. In data collection, a material expert validation questionnaire, student response questionnaire and tests were used. The feasibility results of the Puzzle media are through validation from media experts and material experts. The validation of media experts obtained a total score of 89.5% with the category "very deserving". Meanwhile, the validation of material experts obtained a total score of 89.2% with the category of "very feasible". The results of field trials to measure the practicality and effectiveness of products are carried out through 3 stages, namely individual-scale field tests, small-scale and large-scale field test results. With the student response questionnaire, the average total score was 91.1% with the category "very practical". And the effectiveness field test obtained the results of the overall test score with an average of 87.7% with the category ''Highly effective''.]]>
