With the death last week of Theodore R. Sizer, precollegiate education lost one of its most influential thinkers and a founder of the contemporary movement to improve schools. Mr. Sizer died Oct. 21 at his home in Harvard, Mass., of colon cancer. He was 77. Over his long career, Mr. Sizer was dean of the Harvard Graduate School of Education,…

Two years ago, only 150 students attended Holabird Elementary, then a K-5 school in the southeastern corner of this city. Competition from charters and from regular public schools in nearby Baltimore County had drained families from Holabird, a chronic underperformer. So when Andres A. Alonso, the chief executive officer of the Baltimore city…

Leading national civil rights groups and advocates are increasingly divided over whether the No Child Left Behind Act will improve the academic achievement of poor and minority students, a rift that is generating conversation and concern among a circle of people accustomed to working together. Few civil rights advocates disagree with the law's…