A successful middle school team of teachers employed effective middle level philosophy to structure a curriculum around themes that were relevant, challenging, integrative, and engaging for their particular students and community. Realizing that their young adolescents were involved in tough, delicate issues in their out-of-school lives, the…

The purpose of this study is to compare the efficacy of three different approaches to professional development in Earth science education: preparing teachers to "adopt" expert-"design" curricula; preparing teachers to use a principled approach to design curricula; and preparing teachers to use a principled approach to "adapt" curricula. The claims…