ZELBO, S. COVID and the Importance of Casual Interactions in Mathematics Classrooms. Journal of Mathematics Education at Teachers College, [S. l.], v. 12, n. 1, p. 53, 2021. Disponível em: https://journals.library.columbia.edu/index.php/jmetc/article/view/8238. Acesso em: 29 sep. 2022.