Fatmahanik, Ulum and Afifah, Anis and Fauziah, Hanin Niswatul and Martinez, David (2025) Development of a Supplementary Geometry Book Integrating Realistic Mathematics Education and Reog Ponorogo Ethnomathematics to Improve Elementary Students’ Numeracy Literacy. AL IBTIDA: JURNAL PENDIDIKAN GURU MI, 12 (1). pp. 45-61. ISSN ISSN: 2442-5133, e-ISSN: 2527-7227
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Abstract
This study presents the development of a supplementary geometry book for elementary students by integrating Reog Ponorogo ethnomathematics into the Realistic Mathematics Education (RME) approach to enhance numeracy literacy.
The research employed a Research and Development (R&D) methodology using the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). Validation instruments involved expert evaluations in content, pedagogy, media, and language, alongside practicality questionnaires and numeracy literacy assessments. The developed book achieved high validity across expert domains: 89.8% (content), 91% (media), 94% (learning), and 90% (language). Student response also indicated high practicality (82.3%). A one-sample t-test and N-gain analysis showed a significant improvement in numeracy literacy, with an N-gain score of 0.6461 (categorized as moderate), reflecting a “quite effective” level. These findings suggest that incorporating ethnomathematical elements from local culture within an RME framework can provide meaningful, contextual learning experiences and foster mathematical understanding in early-grade students.
| Item Type: | Journal Article |
|---|---|
| Keyword: | supplementary books, realistic mathematics education, ethnomathematics, numeracy literacy. buku suplemen, realistic mathematics education, etnomatematika, literasi numerasi. |
| Divisions: | Fakultas Ilmu Tarbiyah dan Keguruan > Jurusan Tadris Matematika |
| Depositing User: | Fransisca Puspitasari |
| Date Deposited: | 26 Aug 2025 08:50 |
| Last Modified: | 26 Aug 2025 08:50 |
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