This article provides an extended, comprehensive example of how teachers, schools, districts, and external factors (e.g., parental pressure and policy mandates) shape curriculum research in the U.S. It retrospectively examines how three different middle school curriculum units were implemented and scaled-up in a large, diverse school system. The…

Despite recent calls for border crossing between reading and science, few studies have examined the impact of reading infusion in the science curriculum on students' science literacy. In this quasi-experimental study, the authors investigated the effects of an inquiry-based science curriculum that integrated explicit reading strategy instruction…

This study is an evaluation of "Exploring Motion and Forces: Speed, Acceleration, and Friction" ("M&F") developed by ARIES of the Harvard-Smithsonian Center for Astrophysics (2001). Although "M&F" has been used in many schools and field-tested, it has never been evaluated in rigorous experimental or…