More than 20% of U.S. children entering kindergarten today are of Latino heritage. And Latino children--growing-up in highly diverse communities--enter school with weaker math and English preliteracy skills than their non-Latino peers. The growing percentage of Spanish-speaking children in today's classrooms raises questions for educators, parents, and policymakers about how to best ensure these children acquire English and have a successful start in school. This brief reviews empirical research on the effects of quality preschool for Latino English learners; the efficacy of three instructional strategies for these children, including English immersion (EI), transitional bilingual education (TB), and dual language immersion (DL); and how facets of quality may enhance early learning. (Contains 13 sources.)