task solution, solution analysis, thought processes, animation

One of the important elements in the preparation of future teachers in the field of mathematics is the analysis of the pupil's solution. These analyses include the analysis of the video recording of the pupil's solving procedure and the monitoring of the pupil's thought processes. We do not always have a video recording of solving the task (GDPR, video file size, time space, etc.). Therefore, in the preparation of future teachers in the field of the first grade of elementary school, we tried to replace the video recording with an animation of the solving procedure with the possibility of switching on accompanying comments describing the thought processes during the animation. Students studied various approaches to solving mathematical tasks in this form and subsequently had the task of describing the possible thought processes to solve the assigned task themselves. As part of this contribution, we would like to give an example of such animation and the results of a survey among students on how they evaluated the contribution of such animation in their preparation for the future profession of teacher in the field of mathematics.