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Jurnal Riset Pendidikan Matematika Jakarta
Published by Universitas Negeri Jakarta
ISSN : 26214768     EISSN : 26214768     DOI : -
Core Subject : Education,
Education Mathematics
Jurnal Riset Pendidikan Matematika Jakarta (JRPMJ) E-ISSN:2621-4768, DOI Prefix is a peer-reviewed open-access international journal that aims to the sharing, dissemination, and discussion of current trends research results, experience, and perspectives across a wide range of mathematics education, teaching mathematics, development in mathematics instruction, innovations in mathematics learning, and current trends issue in mathematics education research. This journal will be published four-issue per year in March, June, September, and December published by the Universitas Negeri Jakarta Press. Given that the journal prioritizes research reports in mathematics education, viewpoint articles in the same field will be considered for publication. Jurnal Riset Pendidikan Matematika Jakarta (JRPMJ) welcomes research articles, literature reviews, book reviews from various countries in the world that have high-quality on all topics related to current trends issue in mathematics education research to publish in this journal. Submitted papers must be written in English dan Bahasa Indonesia for the initial review stage by editors and further review process by international reviewer
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 101 Documents
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Efektivitas Desain Didaktis Materi Lingkaran Berbasis Realistic Mathematics Education terhadap Kemampuan Pemahaman Konsep Matematis Ellis Salsabila; Hajizah, Mimi Nur; Pinta Deniyanti Sampoerno
Jurnal Riset Pendidikan Matematika Jakarta Vol. 7 No. 2 (2025): Jurnal Riset Pendidikan Matematika Jakarta Volume 7, Nomor 2, Tahun 2025
Publisher : Program Studi Pendidikan Matematika jenjang Magister, FMIPA, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jrpmj.v7i2.61476

Abstract

This study aims to examine the effectiveness of a didactical design-based teaching material grounded in Realistic Mathematics Education (RME) on the topic of circles in improving students’ conceptual understanding of mathematics. The study employed a quasi-experimental approach with a nonequivalent control group design. The participants consisted of 60 eighth-grade students from a junior high school, divided into the experimental group using RME-based learning modules and the control group receiving conventional, teacher-centered instruction. The main instrument was a conceptual understanding test developed based on six indicators: restating concepts, providing examples and non-examples, classifying, representing, explaining relationships among concepts, and applying procedures meaningfully. Results revealed that the experimental group achieved a higher mean N-gain (0.74, high category) compared to the control group (0.30, low–moderate category). The t-test showed a significant difference (p < 0.001) with a large effect size (Cohen’s d = 1.47). Analysis by indicator indicated significant improvements across all aspects, particularly in explaining conceptual relationships and mathematical representation. These findings confirm that RME-based didactical design materials effectively enhance students’ conceptual understanding of circles by facilitating meaningful rediscovery through real-world contexts and progressive mathematical modeling. Practically, the study suggests that mathematics teachers can adopt RME designs as an alternative instructional approach to promote deeper, contextual, and communicative learning in geometry.

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