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…

Educators and policymakers have debated in recent years how best to improve academic performance in the middle grades. In the absence of outcomes-based research about what works, school districts have reshuffled grade configurations, bolstered their focus on "academic rigor," and worked to ensure that students are engaged in school as…