Use a language other than English to teach subject matter content;
Integrate language teaching with content teaching;
Offer instruction through the immersion language for at least 50% of the school day during the pre-school and elementary years; offer a minimum of two content areas taught through the immersion language in secondary continuation programs;
Promote additive bi- or multilingualism, i.e., enriched instruction in the immersion language sustained through the elementary years, including maintenance English;
Are held accountable for evaluating academic achievement in the content areas;
Employ teachers who are highly proficient in the language(s) of instruction and clearly separate teacher use of one language versus another for sustained periods of time;
Program models include:
One-Way Second/Foreign Language Immersion
Co-Official/Regional Language Immersion
Two-Way Bilingual Immersion
One-Way Developmental Bilingual Education
Indigenous Language Immersion