Discusses the concepts of weight and weightlessness and describes simple activities which can be used to demonstrate weightlessness. (JR)

Results indicated that a) the understanding of the conceptual schemes of relativity depended on grade level and on ability level within a grade, b) achievement decreased with increase in taxonomic level, and c) achievement was better in classical relativity than in special or general relativity. (Authors)

The author advocates the incorporation of a science program designed to recognize cultural differences and to develop process skills in children in developing countries. (CP)

Description of a pilot program, at Florida Technological University, for pre-service elementary teachers which consists of three steps: diagnostic testing to ascertain areas of content deficiency, remediation on an individual basis, and post-testing to determine the progress of each student. (Author/CP)

Photographs of streakies were used to teach the concept of Rutherford scattering. Magnetic pucks with lights were used as streakies. (PS)

Describes a student teacher project in which each student was assigned the task of designing, constructing, and trying out an instructional carrel to teach some specific science concept and/or process to children in grades K-6. Both the student teachers and their pupils appeared to find the learning experience a worthwhile one. (LC)

Describes a new, unified approach to introductory physics based on the conservation laws. classical and quantum physics are presented together as different levels of a unified and consistent description of the world. This approach has been used for the last 3 years as the first course in general physics for science and engineering students at…