Videotape and participant observation were used to document an American high school teacher workgroup's experience with collaborative teacher inquiry and to monitor changes in practice through two cycles of instructional planning, classroom implementation, and reflective analysis. Detectable changes in practice were observed, including a…

This article reports on an investigation of how teachers of geometry perceived an episode of instruction presented to them as a case of engaging students in proving. Confirming what was hypothesized, participants found it remarkable that a teacher would allow a student to make an assumption while proving. But they perceived this episode in various…

While video has long been used to capture micro teaching episodes, illustrate classroom cases and practices, and to review teaching practices, recent developments in video annotation tools may help to extend and augment teacher self-reflection. Such tools make possible the documentation and support self-analysis using verifiable evidence as well…

The present article addresses how lesson study can facilitate changing traditional norms of individualism, conservatism and presentism that constrain American teachers from learning from one another. The article investigates how lesson study can serve as a vehicle for developing teacher learning communities by developing or redeveloping teachers'…

Leading a classroom discussion involves multiple components, including establishing norms for participation, assisting students in engaging in careful readings of text ahead of time, and modeling features of academic discourse. In other work, Grossman and her colleagues refer to this as the "decomposition" of practice--breaking down complex…

This article describes the theoretical framework, research base, structure, and content of a video-based professional development program implemented during 2 consecutive years with sixth-grade mathematics teachers from five low-performing schools. First, difficulties teachers encountered in responding to video-based prompts during the 1st year…

The focus of this chapter is the provision of teacher professional development as needed--just in time. The specific context is the application of peer mentoring in teaching and learning with interactive whiteboards. Data were gathered from two research projects that investigated aspects of teachers mentoring colleagues in Australia. In both…

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…

The purpose of this study was to explore the potential value of online video case discussions among preservice and inservice teachers, and the video case teacher as a tool for the professional development of teachers. Participants included a total of 26 preservice and inservice mathematics teachers and a veteran teacher who appeared on the video…

Within the past few years, there have been numerous studies that suggest that preservice teachers need and want opportunities to observe, visit, interact, and collaboratively reflect with teachers who are attempting to implement reform-based teaching strategies. Unfortunately, for many schools of education, it is logistically difficult to locate a…