PEHKONEN, L. How do primary pupils give written arguments in a conflicting mathematical situation. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 8, n. 1, p. 23–33, 2000. DOI: 10.7146/nomad.v8i1.146701. Disponível em: https://tidsskrift.dk/NOMAD/article/view/146701. Acesso em: 9 jan. 2025.