Effectiveness of the Multi-Representation Discourse Learning Model on Mathematical Problem-Solving Ability and Self-Confidence

Nurlia Safitri 1 Indonesia , Sumardin Raupu 1 Indonesia , Dwi Risky Arifanti 1 Indonesia , Megasari 1 Indonesia , Sitti Zuhaerah Thalhah 1 Indonesia
1 Department of Mathematics Education, Faculty of Tarbiyah and Teacher Training, Universitas Islam Negeri Palopo
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Published 2025-08-13
Vol. 5 No. 3 (2025) PAGES 1171 - 1184
DOI 10.51574/kognitif.v5i3.842
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This study investigated the effectiveness of the Multi-Representation Discourse (DMR) learning model in improving students’ mathematical problem-solving skills and self-confidence. A quasi-experimental pretest–posttest control group design was applied to 55 students selected through cluster random sampling from a population of 194. Data were collected using observation sheets, problem-solving tests, and self-confidence questionnaires, and analyzed with descriptive and inferential statistics. The results revealed that the DMR model was effectively implemented and significantly enhanced both mathematical problem-solving abilities and self-confidence compared to conventional instruction. Beyond its practical effectiveness, this study contributes to the theoretical discourse by demonstrating the value of multi-representation integration in mathematics learning, and provides empirical evidence that discourse-oriented strategies can strengthen both cognitive and affective outcomes. These findings underscore the potential of the DMR model as a pedagogical innovation for advancing mathematics education.

Safitri, N., Raupu, S., Arifanti, D. R., Megasari, M., & Thalhah, S. Z. (2025). Effectiveness of the Multi-Representation Discourse Learning Model on Mathematical Problem-Solving Ability and Self-Confidence. Kognitif: Jurnal Riset HOTS Pendidikan Matematika, 5(3), 1171–1184. https://doi.org/10.51574/kognitif.v5i3.842
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Keywords
Multi-Representation Discourse Mathematical Problem-Solving Self-Confidence Quasi-Experimental Design