Teacher knowledge of science content is an important but under-studied construct. A curricular and professional development intervention consisting of a fifth grade science curriculum, teacher workshops, and school site support was studied to determine its effect on teachers' science content knowledge as measured by a science knowledge test,…

This study further extends a conceptual framework that explores science teaching as a "practice" not reducible to the application of formal knowledge, but as informed by teachers' practical-moral knowledge. A hermeneutic model was developed to examine practical-moral knowledge "indirectly" by investigating teachers'…

Presents a case study of problems that can occur when teaching the topic of redox reactions to grade-11 students. Concludes that the teachers' scientific expertise is an important source of difficulties when teaching redox reactions. Discusses implications for improvement of current chemistry classroom practice and content-related teacher…

Reform-based curriculum materials have been suggested as a mechanism to make inquiry-based instruction more prevalent in secondary science classrooms, specifically when accompanied by comprehensive professional development (Loucks-Horsley, Hewson, Love, & Stiles, [1998]; Powell & Anderson, [2002]). This research examines the implementation of a…

Examines ways that teachers' knowledge about teaching and their educational situations grow when they are engaged collaboratively with other teachers in inquiry on their own practice. Results indicate that mechanisms for enhancement of normal practice include anecdote telling, trying out ideas, and systematic inquiry. Contains 66 references.…