<![CDATA[This study aims to describe the validity, practicality, and effectiveness of ethnomathematics-based multimedia developed on flat geometry material for fourth-grade students of SDN Ringinanom. This study uses a research and development (RnD) methodology with the ADDIE approach model. The ADDIE development approach consists of five phases: analysis, design, development, implementation, and evaluation. The subjects of this study consisted of fourth-grade teachers and all fourth-grade students of SDN Ringinanom, totaling 26. The results of the research that has been conducted show that (1) the results of the material expert validation test obtained a score percentage of 100% and the results of the media validation test obtained a score percentage of 78%. The two validation scores obtained were then accumulated to 89% with a very valid category. (2) the results of the teacher practicality test that has been conducted obtained a teacher response assessment of 100% with a very practical category. The results of the large-scale student practicality test obtained a final score of 87.5% with a very practical category. (3) The results of a large-scale effectiveness test conducted on 16 fourth-grade students at SDN Ringinanom showed that the average pretest score was 58.44 and the average posttest score was 91.88. Based on the Gain Score calculation results in the large-scale trial, the average N-Gain score was 0.8046 (80.46%), which is in the high category.]]>
Copyrights © 2026
