The National Assessment of Educational Progress (NAEP) results have long displayed student achievement in two ways: as points on a stable vertical scale that typically runs from 0 to 300 or 500 and as the percentages of test takers whose scores reach or surpass a trio of "achievement levels." These achievement levels--dubbed…

Has the achievement of U.S. students improved over the past half century? Have gaps between racial, ethnic, and socioeconomic groups widened or narrowed? These and similar questions provoke near-constant conversation. But answers are uncertain, partly because research to date has yielded inconsistent findings. In this article, the authors bring…

The number of charter schools grew rapidly for a quarter-century after the first charter opened its doors in 1992. But since 2016, the rate of increase has slowed. Is the pause related to a decline in charter effectiveness? To find out, the authors tracked changes in student performance at charter and district schools on the National Assessment of…

Education standards do not flop spectacularly. Their failure gives rise to nothing like the black-and-white films of early aeronautical experiments: no missiles exploding on launch pads or planes tumbling from the sky. But 10 years after 46 of the 50 states adopted the Common Core standards, the lack of evidence that they have improved student…

The 10th anniversary of Common Core's launch offers the opportunity to take stock of the impact these nearly national standards have had on student learning, as well as their future prospects. In this article, Morgan Polikoff shares his view that the standards movement in general, and Common Core in particular, have achieved all they are going to…

As an early Common Core booster, Michael Petrilli had hoped that by now--10 years after most states adopted the standards--the nation's schools would have logged tangible improvements in teaching and learning that resulted in higher student achievement. In this article, Petrilli reviews what Common Core is and discusses the work ahead that is…

The Common Core State Standards, released in 2010, were rapidly adopted by more than 40 states. Champions maintained that these rigorous standards would transform American education, but the initiative went on to encounter a bumpy path. A decade on, what are we to make of this ambitious effort? What kind of impact, if any, has it had on the…

Since the 2001 passage of the No Child Left Behind Act (NCLB), test-based accountability has been an organizing principle--perhaps "the" organizing principle--of efforts to improve American schools. But lately, accountability has been under fire from many critics, including Common Core opponents and those calling for more multifaceted…

In his campaign for Mayor of New York City, Bill de Blasio positioned himself as the candidate most determined to break with the legacy of the outgoing Michael Bloomberg administration. Voters responded enthusiastically, handing de Blasio a nearly 50-point margin of victory in the November 2013 election. De Blasio, a Democrat, interpreted the win…

This article describes the grim sentiments from the U.S. Secretary of Education, Arne Duncan, when reviewing the poor results from the U.S. performance on the 2012 Program for International Student Assessment (PISA). He noted a straightforward and stark picture of educational stagnation--that fifteen-year-olds in the U.S. today are average in…