ERIKSSON, Inger; FRED, Jenny; NORDIN, Anna-Karin; NYMAN, Martin; WETTERGREN, Sanna. Tasks, tools, and mediated actions – promoting collective theoretical work on algebraic expressions. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 26, n. 3-4, p. 29–52, 2021. DOI: 10.7146/nomad.v26i3-4.149169. Disponível em: https://tidsskrift.dk/NOMAD/article/view/149169. Acesso em: 6 dec. 2025.