District leaders often feel that working with researchers is not mutually beneficial. Researchers do not provide enough practical guidance, and they are often unable to present their findings in time to inform district decision making. Research-practice partnerships (RPPs) are a potential new strategy for addressing these challenges. RPPs are…

This chapter describes a partnership with four urban districts that aimed to develop an empirically grounded theory of action for improving the quality of mathematics instruction at scale. Each year, we conducted a data collection, analysis, and feedback cycle in each district that involved documenting the district's improvement strategies,…

Our purpose in this article is to propose a comprehensive, empirically grounded theory of action for improving the quality of mathematics teaching at scale. In doing so, we summarise current research findings that can inform efforts to improve the quality of mathematics instruction on a large scale, and identify questions that are yet to be…