HANNULA, J. Characteristics of teacher knowledge produced by pre-service mathematics teachers: the case of open-ended problem-based learning. LUMAT: International Journal on Math, Science and Technology Education, [S. l.], v. 7, n. 3, p. 55–83, 2019. DOI: 10.31129/LUMAT.7.3.391. Disponível em: https://journals.helsinki.fi/lumat/article/view/1244. Acesso em: 3 oct. 2022.