This study aims to: Produce reading mateirals which is validm, practical and effective, the method used is the R&D development method with the tessmer development model which consists of 2 stages, namely: the preliminary stage and the prototyping stage using a formative evaluation flow. Therefore, it can be concluded: (1) The design of puzzle learning media for the initial reading material for grade 1 students at SDN 77 Prabumulih Sumsel can be used to test its validity seen from the assessment

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... at the self-evaluation stage, (2) Produce puzzle learning media on the beginning reading material that valid in score of 92, material expert validation obtained an average score of 98, and linguist validation obtained an average score of 95, (3) Produces puzzle learning media is effective with an average pre-test score of 54 while the average post-test score of 89