Elaborates on cognitive/academic language proficiency and basic interpersonal communicative skills. Discusses assumptions regarding bilingual program exit and entry fallacies and implications for U.S. bilingual education. Argues that failure to adequately conceptualize the construes of language proficiency and its cross-language dimensions causes…

Research Studies reveal that the development of native language proficiency and full bilingualism enhances rather than impedes the education and personal development of minority children. Teachers of language and all subjects should cooperate in promoting native language proficiency and encouraging its use at home. (PMJ)

Reviews impact of Canadian French immersion research on theoretical conceptions of bilingualism and biliteracy and identifies four major issues: effects of bilingualism on children's cognitive and academic development; effects of intensity of school exposure to the second language; the "optimal age" issue; and the suitability of a…