A year ago, Arne Duncan was known as a long-serving urban district chief who had used his collegial management style to push innovation and close failing schools in Chicago. This week, he enters his second year as U.S. secretary of education pursuing a similar national policy agenda that could place him among the most influential leaders in his…

This is not an average classroom. All of the 15 students in the English class Christin M. Bradshaw is teaching on a late-October afternoon are dressed identically in desert fatigues and combat boots. All the young men have uniform buzz cuts. Outside, there is the faint popping of distant rifle practice and the shouted commands of drill sergeants…

This article describes the Center for Benefit-Cost Studies of Education, at Teachers College, Columbia University. Launched last year by a pair of economists, the center specializes in calculating and comparing the long- and short-term costs--and probable payoffs--of different educational strategies that promise to improve students' lives. Studies…