The Dual Immersion program is set up to serve as a bilingual education model with about 50% of the students native/heritage speakers of each language (e.g., Spanish and English). This type of Dual Immersion is called "two-way" as in Two-Way Dual Language or Two-Way Dual Language Immersion.
The method of instruction is the 90:10 model of Two-Way Immersion in which a majority of the school curriculum is taught in a second language. Students in kindergarten and first grades will receive 90% of their daily instruction in Spanish and 10% in English. Each year, students will receive more instruction in English as the percentage of Spanish instruction time begins to decrease. This means that in Second Grade it is 80:20, Third Grade is 70:30, Fourth Grade is 60:40 and from Fifth to Eighth grade, students will receive 50% of their daily instruction in Spanish and 50% in English.
The Two-Way Dual Language Immersion model succeeds by enrolling students with backgrounds in both languages and giving them the opportunity to help each other learn. Spanish speakers help non-Spanish speaking students learn Spanish while English speakers help other students learn English. Both groups learn all of their traditional subjects – literacy, math, science, social studies – in both languages, becoming fully functioning in both languages.