Preservice teachers' feedback to students' solutions on linking linear function equation and graph: a Polish and Slovak case
Résumé
Mathematics Teachers' Specialised Knowledge model (Carrillo et al., 2018) was used as a tool for analysing preservice secondary school teachers' knowledge with respect to functions particularly to linking function graph and equation of linear function. Our aim was to explore their knowledge of the topic in this area and their ability to identify the students' misconceptions that have appeared in provided students' solutions as well as their ability to formulate a valuable feedback to the written solutions. 37 participants from Poland and Slovakia took part in the study. The ability to provide feedback and to identify misconceptions about learning functions was demonstrated in a number of feedbacks and explanations. However, the misconception about scaling was not identified by most of them; moreover, there is an evidence that they shared this misconception. This gap should be addressed in the future teacher training.
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