dual language and immersion

The latest from the EL Gazette looks at Dual language and immersion (DLI) programmes:

Dual language and immersion (DLI) programmes in the USA are now more prevalent than ever, as reported by Axios.com, with over 3,600 now operating, a jump from roughly 1,000 in 2010.
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By far the largest number are Spanish-English, with 2,936, followed by Chinese (312) and French (182). In all there are 27 such programmes, including a number in Native American languages. To be considered a DLI programmer, at least 50% of teaching must be in the non-English language. They are run in various ways. For instance, in some, native English speakers are also enrolled on the basis that they will learn the other language, while in others the total cohort might be native English speakers.
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Research has shown that school students who spent several years in DLI programmes achieved as well as and sometimes higher scores in all academic fields than their peers, and came away with the bonus of an additional language...

Two languages better than one | E L Gazette

Here's some recent research:

Dual-language immersion (DLI) programs — which provide both native English speakers and English learners with general academic instruction in two languages from kindergarten onward — are proliferating rapidly in the United States. Although precise counts of DLI programs are not available, recent estimates place the figure between 1,000 and 2,000 nationally, with substantial recent growth in Utah, North Carolina, Delaware, and New York City.
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This expansion appears driven by a number of complementary forces: a large increase in the share of U.S. schoolchildren who are not native English speakers; observational evidence that English learners in DLI programs academically outperform those in other programs; and demand from parents of native English speakers who anticipate the benefits of bilingualism in an increasingly global society.

Dual-Language Immersion Programs Raise Student Achievement in English | rand.org

It's not only in Spanish;

BPS offering Kindergarten Mandarin Dual Language Immersion for ’22-’23 – WRBI Radio

And there are some great teacher resources:

Bilingual and Dual-Language Teacher Preparation Programs - Language Magazine

The Center for Advanced Research on Language Acquisition (CARLA): Immersion Education

Dual Language Immersion Program » Dual Language Teacher Resources

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