English learners (ELs) constitute a large--and growing--share of the student body in the United States. Data from the U.S. Census Bureau indicate that nearly one-quarter of U.S. children speak a language other than English at home. Furthermore, one-third of children under age 8 have at least one parent who speaks a non-English language--these…

One in four students under the age of six comes from an immigrant family in which at least one parent does not speak English. Traditionally, states such as Nevada, California, New Mexico, Arizona and Texas have served the vast majority of English language learner (ELL) students, although the surging growth of this demographic--now 5.5 million…