SIERPINSKA, Anna; KILPATRICK, Jeremy; BALACHEFF, Nicolas; HOWSON, A. Geoffrey; SFARD, Anna; STEINBRING, Heinz. What is research in mathematics education, and what are its results?. Quadrante, [S. l.], v. 2, n. 2, p. 89–94, 1993. DOI: 10.48489/quadrante.22640. Disponível em: https://quadrante.apm.pt/article/view/22640. Acesso em: 30 jul. 2025.