“Integrating Early Algebra in Early Childhood Education and Primary Education: Didactic Proposals Based on Pictures Books”. Edma 0-6: Educación Matemática en la Infancia 14, no. 2 (December 23, 2025): 132–162. Accessed January 6, 2026. https://revistas.uva.es/index.php/edmain/article/view/9737.