Laine, A., Ahtee, M., Näveri, L., Pehkonen, E. and Hannula, M. S. (2018) “Teachers’ influence on the quality of pupils’ written explanations – Third-graders solving a simplified arithmagon task during a mathematics lesson”, LUMAT: International Journal on Math, Science and Technology Education, 6(1), pp. 87–104. doi: 10.31129/LUMAT.6.1.255.