This study aims to examine the effectiveness of the Make A Match learning model in improving the numeracy skills and cooperation of fifth-grade students in learning 2D shapes at SDN Sindang Mulya 04. A quasi-experimental method with a Nonequivalent Control Group Design was used, involving 80 students, with 40 students from class VA as the experimental group and 40 students from class VB as the control group. The results showed that the experimental group achieved higher average post-test scores in numeracy (84.17) and cooperation (73.5) than the control group, which obtained scores of 74.83 and 56.17, respectively. The N-Gain results placed the experimental group in the high (effective) category, while the control group was in the moderate (fairly effective) category. The t-test produced a significance value of 0.001 < 0.05, indicating that H₀ was rejected. Simple linear regression resulted in R² values of 0.158 for numeracy and 0.623 for cooperation. Therefore, the Make A Match learning model was effective in improving students’ numeracy skills and cooperation in learning 2D shapes.
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