Many educators and policymakers look to two-way dual language immersion as one of the most promising options to close achievement gaps for English learners. However, the programs' effectiveness depends on the quality of their implementation. This article reports on a large-scale study of the implementation of dual language immersion across a…

The Exemplary Capacity Building Program of Transitional Bilingual Education was a federally funded program serving 266 limited-English-speaking, Spanish-speaking students in two Manhattan (New York) elementary schools. Participating students received instruction in English as a Second Language (ESL), native language arts (NLA), and content areas.…

The roles of first and second languages were studied, using ethnographic methods, in a middle school two-way bilingual education program that served Mexican-background students. The primary stated program goal was to develop bilingualism and biliteracy in both minority and majority language students. Classes were taught using English and Spanish…

This monograph discusses issues in the design and implementation of two-way immersion, or two-way bilingual education programs, and describes three exemplary programs. An introductory section examines briefly the rationale for two-way immersion and the extent of its use in the United States. Three school program profiles follow: (1) Francis Scott…