We draw on Engeström's (2011a) formative intervention approach to bring together mentor teachers and university supervisors to construct a tool for structuring observations and mentoring student teachers. Data include videos and transcripts from seven meetings where participants discussed mentoring and viewed video records of teaching practice to…

Video has become a popular tool for professional development. Yet, little is known about how to design video-based learning environments that are productive for teacher learning. The author has used video for teacher learning in the context of a video club. In video clubs, teachers meet together on a regular basis to view and discuss video…

This article investigates how the goals of participants in a video club evolved and became more shared over time. A video club brings groups of teachers together to analyze video from one another's classrooms (Sherin, 2004). The purpose of the video club the author investigates was to bring teachers together to analyze student thinking, an…

This study examines changes in teachers' thinking as they participated in a video club designed to help them learn to notice and interpret students' mathematical thinking. First, we investigate changes in teachers' talk about classroom video segments before and after participation in the video club. Second, we identify three paths along which…

This study investigates mathematics teacher learning in a video-based professional development environment called "video clubs." In particular, the authors explore whether teachers develop professional vision, the ability to notice and interpret significant features of classroom interactions, as they participate in a video club. Analysis for the…