Developing Hands-on Program to build sound view of Energy and Environment for Junior High School Students. The Bulletin of Jpanese Curriculum Research and Practice. 2003. 26. 3. 83-86
The Children's Congnition on the Ideasof the Quaintative and Qualitive Changes.
The Ideasof Quantative, Qualitive Changes and the Identity of the Matter. (Nihon Kyoiku Tosho Center) 1995