Theorizing and exploring teacher learning contexts is critical to understanding reform-based instructional changes. Research on professional learning, organizational contexts, and science reform has grown over the years, particularly since the unveiling of the Framework for K-12 Science Education in the United States. In this article, the authors…

Through a randomized controlled trial, this mixed-methods study evaluated changes in elementary science teachers' understandings, confidence, and classroom implementation of problem-based learning (PBL), inquiry, and nature of science (NOS) instruction following participation in a professional development (PD) as well as the components of the PD…

This report outlines a 2-year investigation into how secondary science teachers used professional development (PD) to build scientific classroom discourse communities (SCDCs). Observation data, teacher, student, and school demographic information were used to build a hierarchical linear model. The length of time that teachers received PD was the…