Pengembangan Perangkat Pembelajaran Berbasis Etnomatematika pada Materi Bangun Datar Berorientasi terhadap Kemampuan Visual Peserta Didik Kelas VIII SMP Negeri 1 Mataram Tahun Ajaran 2026/2027
DOI:
https://doi.org/10.29303/goescienceed.v7i4.3517Keywords:
Ethnomathematics, learning tools, visual ability, Rangrang woven fabric, plane geometry, ADDIE.Abstract
This study aimed to develop ethnomathematics-based learning tools for plane geometry that meet the criteria of validity, practicality, and effectiveness in supporting students’ visual abilities. This Research and Development (R&D) study used the ADDIE model: Analyze, Design, Development, Implementation, and Evaluation. The developed tools included a teaching module, textbook, Student Worksheet (LKPD), PowerPoint media, and assessment instruments integrating triangles, quadrilaterals, Problem Based Learning (PBL), and Lombok Rangrang woven fabric. The subjects were eighth-grade students of SMP Negeri 1 Mataram. Data were collected using validation sheets, teacher and student response questionnaires, and visual ability tests. Validity was analyzed using Aiken’s V, and effectiveness using N-Gain. The results showed that the tools met the validity criteria, with Aiken’s V values ranging from 0.77 to 0.87. Practicality reached 90.27% based on student responses and 100% based on teacher responses, both categorized as very practical. The N-Gain value was 0.64, indicating moderate effectiveness. Therefore, the developed learning tools were valid, very practical, and moderately effective in supporting students’ visual abilities in plane geometry.
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