Teaching science to diverse learners can be a demanding and challenging task. Teachers may be underprepared and thus unsure of how to best address the needs of their students in their classroom. One approach to helping teachers is through professional development. Yet, programs that focus mainly on science or special education can fail to fully…

This article begins to unravel the question, "What curricular materials work best under what kinds of conditions?" The authors address this question from the point of view of teachers and their ability to implement mathematics curricula that place varying demands and provide varying levels of support for their learning. Specifically, the…