Eriksson, I., Fred, J., Nordin, A.-K., Nyman, M. and Wettergren, S. (2021) “Tasks, tools, and mediated actions – promoting collective theoretical work on algebraic expressions”, NOMAD Nordic Studies in Mathematics Education, 26(3-4), pp. 29–52. Available at: https://tidsskrift.dk/NOMAD/article/view/149169 (Accessed: 24 November 2024).