![]() ![]() The results of expert validation for the media aspect achieved a very feasible category, while the material aspect also reached a very feasible category. Meanwhile, descriptive qualitative was to describe the data of suggestions and comments from the validators for improvement. Descriptive statistics was used to analyze data from students' tests. The data was analyzed using a quantitative descriptive statistical analysis. The instruments used in this study were expert validation sheets, questionnaires, and tests. ![]() This research was a development research, involving 64 junior high school students in Yogyakarta. This study aimed to provide valid, practical, and effective learning media. A media enables students work on varied random problems is necessary. Student can master the materials by doing the problems repeatedly.
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