MATE, Ileana. Cooperative learning in teaching mathematics: the case of addition and subtraction of integers. Teaching Mathematics and Computer Science, [S. l.], v. 9, n. 1, p. 117–136, 2011. DOI: 10.5485/TMCS.2011.0278. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14890. Acesso em: 27 sep. 2024.