Because of increasing student enrollment, a new school was formed in a small low-income Southern California school district. Teachers could choose to transfer to the new school or remain at the existing school. Over five years, quantitative analyses of demographic data showed little differences between the two schools across the years except for a…

The poor performance of students in America's urban high schools, both in absolute terms and in comparison with their more economically secure counterparts in suburban schools, is a critical issue for the country, and the opportunity for all students to learn mathematics has been heralded as the new "civil right." In a recent study of…