<![CDATA[This study attempts to create GeoDa (Geometry Dakon) media based on local culture that can help fifth-grade students of Ngentak State Elementary School better understand geometric concepts. The method used in this study is Research and Development (R&D) by utilizing the ADDIE paradigm including the Analysis, Design, Development, Implementation, and Evaluation phases. In the validation of GeoDa media, it was carried out by material and media experts. The Wilcoxon test and student response surveys were used for testing. The results of the media validation obtained a value of 98% and for the material validation obtained 90.6%, so the GeoDa media is very suitable for use. This media is suitable for use, as evidenced by the average student response of 73% for small group trials and 80% for large group trials. The Wilcoxon test shows the results of Asymp. Sig. Value (p) <0.001, indicating that the use of GeoDa (Geometry Dakon) media significantly improves students' understanding of geometric materials. Thus, GeoDa media can be used to teach mathematics, especially geometry.]]>
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