Critics of the federal No Child Left Behind law, including Democratic presidential candidates vowing to overhaul or end it, have often accused it of being too harsh. It punishes weak schools instead of supporting them, as Sen. Barack Obama puts it.
But when it comes to the worst-performing schools, the 2001 law hasn't shown much bite. The more-radical restructuring remedies put forth by the law have rarely been adopted by these schools, many of which aren't doing much to address their problems, according to a federal study last year.
The troubles in the restructuring arena reflect broader questions about whether NCLB is a strong enough tool to bring about the overhaul of American education. In many ways, the law was an outgrowth of "A Nation at Risk," a pivotal 1983 federal report that warned that a "rising tide of mediocrity" in education could undermine the nation's competitiveness. That report ushered in the era of accountability and testing, which eventually spawned NCLB.
Supporters maintain the law is helping to fuel learning gains. In the most recent National Assessment of Educational Progress tests, reading and math scores for fourth and eighth graders rose compared to 2005, albeit only by a few points.
But NCLB gave states -- not the federal government -- authority to set the academic standards for local schools. And so, while NCLB requires all students to be proficient in reading and math by 2014, states determine what proficiency is and how they will test for it. A 2007 federal study found states don't exactly agree on proficiency.