It has long been thought that the United States education system is the great equalizer, lifting less advantaged children out of poverty and improving their chances for success in adulthood. The opportunity for economic and social mobility depends heavily, however, on access to high quality education. Recent research has raised concerns about…

Performance-based accountability along with budget tightening has increased pressure on publicly funded organizations to develop and deliver programs that produce meaningful social benefits. As a result, there is increasing need to undertake formative evaluations that estimate preliminary program outcomes and identify promising program components…

This article describes a multifaceted program that improves the mathematics instruction in a school district's 10 lowest-performing schools. This program includes seven support components--including monetary incentives for teachers, professional development, education technology, and reduced class sizes. After three years, results show that the…