Jorge Rincón Castillo, Orlando García Hurtado, José Ciro Anzola. Activities Based On Non-Routine And Recreational Problems, To Improve The Learning Of School Mathematics. Elementary Education Online [Internet]. 2023 Dec. 20 [cited 2024 Nov. 23];19(2):1338-52. Available from: https://ilkogretim-online.org/index.php/pub/article/view/6691