General and special educators often do not have the needed knowledge and skills or collaborative opportunities to implement coordinated, evidence-based instruction within a multi-tiered systems of support (MTSS) framework. As such, the authors used a randomized control design to examine the impact of Project Coordinate (PC), a professional…

Teams of educators conducted lesson study independently, supported by a resource kit that included mathematical tasks, curriculum materials, lesson videos and plans, and research articles, as well as protocols to support lesson study. The mathematical resources focused on linear measurement interpretation of fractions. This report examines the…

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…