<![CDATA[This study aimed to investigate the effect of the Indonesian Realistic Mathematics Education (PMRI) approach on students' mathematical problem-solving abilities and learning motivation. A true experimental design was employed with a posttest-only control group. The sample consisted of 72 students (36 experimental, 36 control) selected through random sampling. Data were collected using a problem-solving ability test and a learning motivation questionnaire (30 items, 5-point Likert scale). The instruments were validated through expert review and pilot testing, achieving a Cronbach’s alpha of 0.89 for the questionnaire. Independent t-tests revealed a significant difference in problem-solving ability between the experimental and control groups (t = -9.62, p < 0.001). However, learning motivation results did not show a statistically significant difference (t = -6.20, p = 0.269). The findings suggest that PMRI enhances students’ problem-solving abilities but may require longer intervention periods to influence motivation.]]>
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