NAVARRA, G. The early algebra and the ArAl project. EDiMaST: Experiences of Teaching with Mathematics, Sciences and Technology, [S. l.], v. 3, n. 3, p. 539–547, 2018. Disponível em: https://www.edimast.it/index.php/edimast/article/view/56. Acesso em: 24 apr. 2024.