The president invoked North Glen's success on the fourth anniversary of the law, at a time when support for his signature education initiative has eroded.
Despite large increases in federal aid to schools, many congressional Democrats say that overall, the law is underfunded. Some conservatives say the law undermines local authority and gives the federal government too much control over schools. Those concerns have stalled a Bush administration proposal to expand the law's testing requirement to the nation's high schools.
Educational researchers say it is too soon to say whether the law has prompted lasting improvement in student achievement. "Bush is claiming greater success for the act than he can justify," said Jack Jennings, president of the Center on Education Policy, a Washington research organization that has closely studied the law's impact. "It is still unclear that the law will be successful in solving the problems in public education."
At North Glen, the percentage of black third-graders rated as proficient on the statewide test rose from 32 percent in 2003 to 94 percent in 2005, placing the campus among the top schools in Maryland for black student performance. Black students perform at least as well as whites on several academic measures at the school, whose student population is 42 percent black, 40 percent white, 11 percent Hispanic and 7 percent other ethnic groups.