This article presents an example of teacher professional development based on a perspective of situated learning and implemented on a large scale. We consider teacher professional development from three perspectives. First, teacher professional development is a key factor in improving classroom instruction. Second, teacher professional development…

In this article, the author describes how middle schools can prepare young people for the challenges and opportunities of the 21st century. Integrating 21st century skills deliberately and systematically into middle school education will empower educators to accomplish many of the elusive goals they have tried to reach for years. Twenty-first…

This research report builds on the results of the CATCH project (Webb and Dekker, 2002). The CATCH project is an effort to apply and scale up previous results and design a professional development program to bring about fundamental changes in teachers' instruction to support change in teachers' formative assessment practices. In this report we…