We present a sensitive diffusion cloud chamber which does not require any radioactive sources. A major difference from commonly used chambers is the use of a heat sink as its bottom plate. The result of a performance test of the chamber is given. (Contains 8 figures.)

This paper discusses the development of new curricula, materials, and equipment in Japan. The first section, "The Development of New Curricula," discusses the National Curriculum Council and the improvement of the content of instruction, including basic directions for improvement, the structure and content of school subjects, and the…

This five-part report examines several aspects of science/engineering (S/E) education as it relates to S/E manpower. Part I discusses: pre-college science/mathematics curricula that have a bearing on future career decisions of students and that will subsequently affect the supply of scientific/technical manpower; the importance of…

Information is presented about the educational systems of countries participating in the practical skills testing portions of the Second International Association for the Evaluation of Educational Achievement Science Study, drawing on accounts submitted by the participant nations Hungary, Israel, Japan, Korea, Singapore, and the United States.…