The "High Schools That Work" school improvement initiative is the nation's largest comprehensive school reform model with over a thousand schools adopting its framework. The initiative's premise is that all students can meet the demands of a college preparatory curriculum if provided the right supports. Analyzing over a decade of data on student…

Even in early grades, a large gap in skills exists between students from economically advantaged and disadvantaged families. Evidence suggests that a substantial share of this skills gap emerges during the summer months, when school is not in session. Children from disadvantaged families experience greater losses in skills during summer vacations…