EFEKTIVITAS PENGGUNAAN STRATEGI PEMBELAJARAN KOOPERATIF TIPE MAKE A MATCH BERBANTUAN MEDIA MATHIGON TERHADAP KEAKTIFAN BELAJAR DAN PEMAHAMAN KONSEP MATEMATIKA PESERTA DIDIK KELAS IV DI SDN 2 CEPOKOJAJARNIM.: 24204081023Nur AnisaauthorThis research was motivated by the low level of students’ understanding of mathematical concepts and their learning activeness in the topic of plane geometry. Therefore, this study aims to examine the effectiveness of the make a match cooperative learning strategy assisted by Mathigon media in improving students’ conceptual understanding of mathematics and their learning activeness. The objectives of this study are: (1) to describe the implementation of the Make a Match strategy assisted by Mathigon media in the experimental class; (2) to determine whether there is a significant difference between the experimental and control classes; and (3) to examine the effectiveness of the strategy in improving students’ conceptual understanding and learning activeness. This study employed a quantitative approach with a quasi-experimental design. The population consisted of all fourth-grade students, and a saturated sampling technique was used, meaning all students were included as the sample, with class IV A as the experimental class and class IV B as the control class. Data were collected through a mathematical concept understanding test, observation sheets, and field notes. Data analysis included normality test, homogeneity test, Mann-Whitney test, independent sample t-test, and N-gain test. The results showed that the implementation of the make a match strategy assisted by Mathigon media created an interactive learning environment. The Mann-Whitney test indicated a significant difference between the experimental and control classes in terms of mathematical concept understanding (Sig. (p-value) = 0.037 < 0.05). Meanwhile, the t-test results showed no significant difference in students’ learning activeness (Sig. (p-value) = 0.078 > 0.05). The N-gain results indicated a moderate improvement in mathematical concept understanding 0,62 and learning activeness 0,40.371.36 Metode Pengajaran, Metode Pembelajaran2026-05-12UIN SUNAN KALIJAGA YOGYAKARTA;FAKULTAS ILMU TARBIYAH DAN KEGURUANThesis