Despite the long history of the study of pedagogical content knowledge (PCK), two facts remain obvious. First, there are almost as many conceptions regarding the definition of PCK as there are researchers interested in it. Second, it is largely unclear which methods enable teacher educators to best prepare teacher candidates to use PCK. Recently,…

This article presents four cases of journeys of discovery and renewal, and the unexpected learning that results from exploring our practice with others. The authors are three classroom teachers--Steve, Stephanie and Bennyce--all of whom took part in a year-long action research sequence and the two professors--Helen and Mary--who co-taught these…