The quantities in the Yupana from an Andean cultural perspective: An experience at classrooms of first and second grade of primary school. Edma 0-6: Educación Matemática en la Infancia, [S. l.], v. 5, n. 2, p. 36–49, 2021. DOI: 10.24197/edmain.2.2016.36-49. Disponível em: https://revistas.uva.es/index.php/edmain/article/view/5867. Acesso em: 2 feb. 2026.