The authors of this chapter review empirical studies that have been conducted in bilingual education to propose a future research agenda that incorporates the most recent evidence on the effectiveness of bilingual programs, advances in neuroscience, and the body of evidence of the benefits of being bilingual and biliterate. They first describe the…

Confronted with many challenges to improving the quality of U.S. public K-12 education, many policymakers have viewed the study of a second language as a useful but nonessential ingredient of a world-class education system. However, others point out that dual-language education can be a powerful intervention for closing the achievement gap for…

This article reports analysis of data collected from a quasi-experimental study in 2 Canadian late French immersion science classes. We examine if, how, and when the first language (L1) is used when students in the first years of their second language learning talk about complex science concepts. We compare differences in groups following a…