Adrián-Jiménez, Cristina, Noelia Jiménez-Fanjul, María José Madrid, and Cristina Pedrosa Jesús. “Use of Mathematical Manipulatives and Development of Number Sense in First Grade Primary-Students”. Mathematics, education and society 5, no. 3 (December 22, 2022): 10–21. Accessed July 22, 2024. https://journals.uco.es/mes/article/view/15235.