Budiarti, E., Lestari, J.T. and Hagenimana, E. 2024. The educational game "MARIO" for early childhood number recognition to improve cognitive abilities: Attempts and Problems. Journal of Teaching and Learning Mathematics. 2, 1 (Jul. 2024), 08–16. DOI:https://doi.org/10.22219/jtlm.v1i2.28754.