認知的葛藤を生起させるための電卓を用いた教材の提案と実践

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  • A Proposal of Teaching Material using Calculator to Induce Cognitive Conflict and its Implementation

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In this paper, we proposed and implemented an example of teaching materials requiring responsible determination to results in numerical simulations through the cognitive conflict. The logistic map is not able to calculate the exact solution in a certain parameter region because of its instability, in spite of the low dimensional map. In this implementation, we let students in upper secondary school trace the root around a fixed point by a simple pocket calculator, step by step. Through the comparison with the static analytical root and the dynamic calculated root, students could explain the relation between a suitable root and calculating conditions. The growth of the proper attitude for calculations/simulations is also quite important from the viewpoint of the education about the scientific attitude.

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