The paper evaluates math performance at four high-need middle schools during a four-year intervention, which was designed to help math teachers diagnose students' areas of need and to design lesson plans responsive to those needs. Before the intervention began, the researchers pre-selected four...

The traditional historical narrative claims that White women were rarely involved in market transactions for enslaved people in the antebellum United States. Using transaction records, notary statements, and runaway advertisements, we provide the first quantitative estimates of the extent of...