标题:115 思考過程に関する一研究(I)(3.発達(2),日本教育心理学会第5回総会部門別研究発表要旨・討論の概要) [in Japanese] 115 A study on the thinking process (I)(3.Development (2),PROCEEDINGS OF THE FIFTH ANNUAL CONVENTION OF JAPANESE ASSOCIATION OF EDUCATIONAL PSYCHOLOGY PAPERS AND THE SUMMARIES OF DISCUSSIONS) [in Japanese]