First Advisor

Kimberley Brown

Date of Award


Document Type


Degree Name

Bachelor of Arts (B.A.) in Applied Linguistics and University Honors


Applied Linguistics




Immersion method (Language teaching), Bilingual education, -- Oregon -- Portland -- Case studies




This paper provides evidence and background information to support the claim that Dual Language Immersion (DLI) is the optimal k-12 education program to reduce the achievement gap between English Language Learners and native speakers of English, while also providing extraordinary benefit for Foreign Language Learners in the United States. This paper draws on Second Language Acquisition theory and recent education policy to show that the language situation in the United States would benefit greatly from the continued and amplified support of Dual Language Immersion programs over other programs like monolingual English immersion, transitional bilingual immersion, and developmental bilingual immersion. The main example program discussed in the paper is the Portland Public Schools DLI program, and it is explained in detail. In addition to a program description and specific performance data gathered by PPS and the RAND Foundation, performance data from other DLI program studies is also included to further support the claim.


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