Putri Ayuni et al. 2026. The Influence of the Inside Outside Circle (IOC) Cooperative Learning Model on Students’ Mathematics Learning Activity . Jurnal Pemikiran dan Penelitian Pendidikan Matematika (JP3M). 9, 1 (May 2026), 89–97. DOI:https://doi.org/10.36765/jp3m.v9i1.952.