@article{Laine_Ahtee_Näveri_Pehkonen_Hannula_2018, title={Teachers’ influence on the quality of pupils’ written explanations – Third-graders solving a simplified arithmagon task during a mathematics lesson}, volume={6}, url={https://journals.helsinki.fi/lumat/article/view/1278}, DOI={10.31129/LUMAT.6.1.255}, abstractNote={<p>The aim of this study is to find out whether there is a connection between teacher’s request and guidance for written explanation and third-graders’ achievements in solving a non-standard problem.  Pupils’ task was to solve a simplified arithmagon and to explain their solution. The lessons of seven teachers were recorded and their actions were examined and categorized during a problem-solving lesson. Also pupils’ solutions were checked and classified. The teacher’s behavior seems to have a crucial role in the quality of pupils’ written explanations. The third-graders had difficulties in writing their reasoning for solving the problem.</p>}, number={1}, journal={LUMAT: International Journal on Math, Science and Technology Education}, author={Laine, Anu and Ahtee, Maija and Näveri, Liisa and Pehkonen, Erkki and Hannula, Markku S}, year={2018}, month={Jun.}, pages={87–104} }