Loor-Mera MR, Alcívar-Cedeño MD del R. Tools to stimulate mathematical performance in students from 6 to 9 years of the Manabí educational unit. ijpm [Internet]. 2022Jul.10 [cited 2024Jul.16];5(1):47-56. Available from: https://sloap.org/journal/index.php/ijpm/article/view/1916