The author discusses fixing the "Iceberg Problem" of gaps and unfinished learning lurking beneath the surface of math students. Math is cumulative, with new learning resting atop earlier mastery. Year by year, students learn interconnected concepts in a coherent progression, building a foundational body of knowledge that undergirds new…

Income inequality has soared in the United States over the past half century. Has educational inequality increased alongside, in lockstep? Despite the topic's importance, surprisingly little scholarship has focused on long-term changes in the size of the achievement gap between students from higher and lower socioeconomic backgrounds. The authors'…

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…

When Daniel Patrick Moynihan raised the issue of family structure half a century ago, his concern was the increase in black families headed by women. Since then, the share of children raised in single-parent families in the United States has grown across racial and ethnic groups and with it evidence regarding the impact of family structure on…

While heads were spinning, policy watchers seemed genuinely perplexed by New York City's Mayor de Blasio's education opinions. De Blasio opposed many of Bloomberg's reform efforts despite the achievement gains realized by the nation's largest school district during the last 12 years. Yet on close reading, de Blasio's nine-page education plan…

Ninety-five percent of students at Redwood City's Hoover School, in San Mateo County, California, come from low-income and working-class Latino families, and nearly all start school as English language learners (ELLs). The elementary and middle school piloted the Sobrato Early Academic Language (SEAL) program in 2009 in hopes of raising reading…

In a report issued in 2010, the authors found only 6 percent of U.S. students performing at the advanced level in mathematics, a percentage lower than those attained by 30 other countries. And the problem is not limited to top-performing students. In 2011, they showed that just 32 percent of 8th graders in the United States were proficient in…

For a decade, at least since the passage of No Child Left Behind, the nation's foremost education goal has been to erase achievement "gaps" in which African American, Latino, and low-income students dramatically lag behind their peers. This emphasis has enjoyed broad support through the Bush and Obama administrations, and from major…