Ayala Valladares, Carla Marilia, Juana María Cruz Montero, and Angel Saldarriaga Melgar. “Playful Activities in the Learning of Geometric Notions in Children of Initial, Callao”. Journal of Global Education Sciences 1, no. 1 (February 8, 2019): 22–30. Accessed November 20, 2025. https://journals.cincader.org/index.php/gesj/article/view/107.