This study explored whether early childhood preservice teachers' concerns about teaching nature of science (NOS) and their intellectual levels influenced whether and how they taught NOS at the preschool and primary (K-3) levels. We used videotaped classroom observations and lesson plans to determine the science instructional practices at the…

Discusses the concept of pedagogical content knowledge within the context of science teaching. Defines the concept and identifies teaching experience as the major source of pedagogical content knowledge. Contains 69 references. (DDR)

Delineates factors which facilitate or impede the relationship between classroom practices and teachers' understanding of the nature of science. Finds that teachers' conceptions of science do not necessarily influence classroom practice, though teachers' level of experience, intentions and perceptions of students were critically influential on…

Pedagogical content knowledge (PCK) is a much debated and studied construct. In this article, we adopt an all-embracing view of PCK to examine the development of one elementary science teacher's knowledge over a 10-year period. We portray this teacher's knowledge at three critical points in her career--as a student teacher, beginning teacher, and…