The idea of data use as an educational reform strategy has gained significant traction in recent years, but there is limited research that illuminates what actually happens when teachers use data in practice. This study investigates the ways a group of middle school mathematics teachers used data in their classrooms and as part of an action…

Many stakeholders have long argued that teachers should use data from their own teaching as a way to improve their performance. The first chapter of this dissertation is a summary of the literature that advises mathematics teachers about what data they should gather and how they should use those data to improve instruction. The literature is…