Background: Data-driven decision making continues to be a common feature of educational reform agendas across the globe. In many U.S. schools, the teacher team meeting is a key setting in which data use is intended to take place, with the aim of planning instruction to address students' needs. However, most prior research has not examined how the…

Andy Hargreaves is internationally renowned for his work on many topics related to educational change. His work on how educational change shapes teachers' work, particularly with respect to teacher collaboration, is well exemplified in his award-winning 1994 volume, "Changing Teachers, Changing Times: Teachers' Work and Culture in the Postmodern…

The expectation that teachers will use student achievement data to improve their instruction is a major feature of national and local reform agendas. The theory of action behind data-driven decision making is a mostly causal model of professional action, whereby teachers diagnose weaknesses and implement solutions. The purpose of this article is…