A review of the research on teacher professional development identified an emerging consensus on important contextual and implementation characteristics that can promote or inhibit teachers' use of new knowledge and skills in their classroom practice. Findings suggest that professional development is best viewed as one component in an overall…

Widespread agreement exists that U.S. teachers need improved mathematics knowledge for teaching. Over the past decade, policymakers have funded a range of professional development efforts designed to address this need. However, there has been little success in determining whether and when teachers develop mathematical knowledge from professional…