数概念の発達を促進するための認知心理学に基づいた訓練ソフトの開発

We have developed software for improvement of numerical concept based on cognitive psychology．And we verified the effect of the software by cooperation of a child who has retardation in intellectual development．The cooperator was not good at adding and had solved adding using “counting up” before training．Therefore，we have carried out several steps of training which are adopted to cooperator’s developmental steps．As a result，the cooperator has improved the ability of operation of a number，adding of three numbers，adding with carry and understanding cohesion of five and ten．Furthermore，the strategy changed to “counting on” and “it using the complement of ten”．Thus，we consider that training using our software has improved numerical concept of the cooperator．