Laine A, Ahtee M, Näveri L, Pehkonen E, Hannula MS. Teachers’ influence on the quality of pupils’ written explanations – Third-graders solving a simplified arithmagon task during a mathematics lesson. LUMAT [Internet]. 2018 Jun. 21 [cited 2024 Apr. 26];6(1):87–104. Available from: https://journals.helsinki.fi/lumat/article/view/1278