An argument is made that teacher leadership at both the system and school level is an important part of the science systemic process intended in science education reform. This article describes the design of such a professional development program, the challenges addressed, and the impact on teacher leaders.

The authors report an empirical pilot study of current models of elementary science instruction that utilize science specialists, and make a call for the participation of schools and districts that use a specialist model to assist in collecting the descriptive data needed to create the foundation for future research on the use and impact of…

A case is made that professional development activities in science, when designed as generic programs, can limit pathways individual teachers may take or even select to meet their specific professional development needs. Teacher professional development programs in science have consistently been designed to address system wide needs. These needs…