Though the field of physics is moving toward more realistic problems and the use of computers and mathematical modeling to promote insightful treatment of physical problems, artificial problems still appear in textbooks in the field of electrostatics. Discusses physical arguments why one of the most popular textbook applications of Coulomb's Law…

This paper describes the current approach used in Israel for teaching photosynthesis to junior high school students. Authors identify two types of problems, psychological and instructional, that children experience in understanding photosynthesis. Presents a foundation and sequence for a new approach to teaching photosynthesis. (18 references) (PR)

Argues that by examining which concepts of a particular area of physics are fundamental and which are defined, teachers can choose concepts for investigation that progress logically and should minimize students' misconceptions and confusion. (Author)