Collective approaches to practice development are increasingly common in the teaching profession. Such initiatives frequently involve groups of teachers taking responsibility for introducing, sharing and developing new pedagogical resources and for aiding their integration into existing practices. This article explores teachers' knowledge work as…

This report describes the origin and development of CESAME (The Center for Science and Mathematics Education) at Stony Brook University. The analysis identifies key ingredients in areas of personnel, funding, organizational structures, educational priorities, collaboration, and institutionalization. After a discussion of relevant issues in…