Two years of disruptions to schooling, coupled with recession and other pandemic-induced effects, appear to have widened preK-12 educational inequality. In particular, low-income students of color fell further behind their higher income White peers than they were pre-pandemic, on average, with the largest declines in math achievement. High-dosage…

Catching students up who have fallen behind academically is a key challenge for educators, and can be difficult to do in a cost-effective manner. This field experiment examines the causal effect of a program designed to provide struggling sixth and seventh graders with math instruction delivered in small groups of roughly ten students by select…