<![CDATA[The development of effective, practical and valid Interactive PPT learning media is the goal of the research conducted. The R&D method with the ADDIE model was used as a method and model in this study. The research was conducted at SMP Negeri 4 Darangdan using subjects of 10 9th graders in a limited trial and 30 grade 8 students in a large trial. The instruments used are test and non-test instruments which include expert validation sheets, practicality sheets and pretest and posttest questions. Interactive PPT learning media obtained a very valid/feasible category based on the validation of media experts and subject matter experts, very practical from the results of extensive and limited trials and effective based on the results of effectiveness calculations after being given learning using interactive PPT media with the Discovery learning model with the calculation of N-Gain values in the high category. So it can be concluded that Interactive PPT media with the Discovery Learning model is very valid/feasible, very practical, and effective in mathematics learning.]]>
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