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Guglielmi, R. Sergio – Journal of Educational Psychology, 2012
The effectiveness of various strategies for educating the growing U.S. population of English language learners (ELLs) has attracted a great deal of controversy. Bilingual education theory posits that retention and continued development of native language (L1) skills facilitate academic achievement through two mediating mechanisms. First, L1…
Descriptors: Academic Achievement, Science Achievement, Bilingual Education, Second Language Learning

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