KAITERA, S.; HARMOINEN, S. Developing mathematical problem-solving skills in primary school by using visual representations on heuristics. LUMAT: International Journal on Math, Science and Technology Education, [S. l.], v. 10, n. 2, p. 111–146, 2022. DOI: 10.31129/LUMAT.10.2.1696. Disponível em: https://journals.helsinki.fi/lumat/article/view/1696. Acesso em: 20 may. 2024.