Science Cases in Action: Developing an Understanding of Science Teachers' Pedagogical Content Knowledge.

This paper describes the rationale for and progress in a substantial research project that aims to develop an understanding of science teachers' pedagogical content knowledge. The background to and purposes for the project are explained. Related projects that study pedagogical content knowledge (PCK) are also described. Approaches to identifying PCK are outlined, and an example is used to describe a new approach. (Contains 18 references.) (WRM)