VISEU, F.; OLIVEIRA, I. B. Open-ended tasks in the promotion of classroom communication in mathematics. International Electronic Journal of Elementary Education, [S. l.], v. 4, n. 2, p. 287–300, 2017. Disponível em: https://iejee.com/index.php/IEJEE/article/view/200. Acesso em: 21 apr. 2025.