CHAPMAN, O. Teacher intervention during mathematical problem solving. Quadrante, [S. l.], v. 8, n. 1&2, p. 169–188, 1999. DOI: 10.48489/quadrante.22714. Disponível em: https://quadrante.apm.pt/article/view/22714. Acesso em: 5 fev. 2025.