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…

This report is a follow-up to "Gaining Ground in the Middle Grades" (Williams, Kirst, Haertel, et al., 2010). That study specified a comprehensive set of actionable practices that differentiated higher academic achievement among 303 middle grades schools in California. In doing so, the study provided a compelling and coherent account of…