PETAKOS, K. Comparing fractions at the age of 11 through the use of the zone of proximal development. EDiMaST: Experiences of Teaching with Mathematics, Sciences and Technology, [S. l.], v. 2, n. 2, 2017. Disponível em: https://www.edimast.it/index.php/edimast/article/view/37. Acesso em: 18 jul. 2024.