The research article in this article is part of a larger study that examines an initiative to expand teacher expertise in facilitating mathematical problem solving within the framework of developing and field-testing pedagogical resources. We focus on one year of the study and report on the complex process of professional development as teachers…

This research project consists of a randomized experiment in a few of the Reynoldsburg City Schools. The primary purpose of this research is to produce scientifically based evidence of the comparative effectiveness of the "Scott Foresman Science" ("SFScience)" program. The question being addressed by the research is whether…