Lack of researcher consensus on how to measure disadvantaged students' access to effective teaching has made it challenging for practitioners to draw lessons from the data. This brief aims to help policymakers understand the emerging evidence by synthesizing findings from three peer-reviewed studies that collectively span 17 states. The studies…

2010 was a pioneering year for Massachusetts public schools. State leaders recognized that while the Commonwealth leads the nation in student achievement on national measures such as NAEP (National Assessment of Educational Progress), more needed to be done to close the persistent achievement gaps between our wealthy and poor students. Combining a…