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Dual Immersion

One school, two languages:

Dual Language Immersion is a unique educational program that builds student bilingualism and bi-literacy in English and in Spanish. Instruction is provided by highly trained and caring teachers. Students continue to learn standards-based content while they become fluent in two languages; linguistically and academically.  

Dual Immersion video

Three Pillars of Dual Immersion

  • Bilingualism and Biliteracy: To achieve a high level of language proficiency (Speaking, Listening, Reading, and Writing) in the student's primary language and target language.
  • High Academic Achievement: To achieve performance at or above grade level in all academic areas in both languages.
  • Sociocultural Competence: To develop self-esteem and prosocial skills, and to understand and appreciate different cultures.

Students benefit from Dual Language Immersion because:

  • Young children learn a second language more naturally at a young age.
  • Bi-literate skills give students the options for careers requiring multilingual skills.
  • The study of a second-language helps develop strong thinking and reasoning skills useful for problem-solving.
  • Academic language proficiency in two of the most widely spoken languages in the world. 

Breakdown of Instructional time by language per grade level: 



1st Grade

2nd Grade

3rd Grade

4th Grade

5th Grade

6th-8th Grade

















  • Students receive the same curriculum as all students throughout the district while using the 90/10 instructional language model, whereby students are immersed in each language for a designated percentage of the time daily.
  • All Dual Immersion students have access to the same support services offered district-wide. This includes intervention in both Spanish and English.  
  • State testing is administered in both languages in order to assess mastery of both curriculum and language development. 

Program expectations:

  • Parents must be actively involved in their child’s education by reinforcing the target language at home.
  • Attendance is critical. Every day counts!
  • It is a long-term commitment. Students experience greater social and academic outcomes the longer they are in the program.


The program is open to all students, regardless of home language. Families living outside of school boundaries must apply for open enrollment. 

Classroom contains a balance of Spanish and English learners. Non-Spanish speakers must enroll no later than the start of 1st grade. All other prospective students must pass a Spanish language assessment before being placed in the program. 

For more information about the Dual Immersion program and to schedule a tour, please contact the school site. 

Thomas Edison Language Institute

2950 Hurley Way

Sacramento, CA 95864

(916) 979-8960

Click here for open enrollment information

More information about the Dual Immersion program 

Más información sobre el programa de inmersión dual 


Exposure To Two Languages Carries Far-reaching Benefits

ScienceDaily (May 20, 2009) — People who can speak two languages are more adept at learning a new foreign language than their monolingual counterparts, according to research conducted at Northwestern University. And their bilingual advantage persists even when the new language they study is completely different from the languages they already know.

"It's often assumed that individuals who've learned multiple languages simply have a natural aptitude for learning languages," said Viorica Marian, associate professor of communication sciences and disorders at Northwestern University. "While that is true in some cases, our research shows that the experience of becoming bilingual itself makes learning a new language easier."

In the first study to explore a possible advantage in bilinguals who learned a second language at a parent's knee, Northwestern researchers asked three groups of native English speakers -- English-Mandarin bilinguals, English-Spanish bilinguals and monolinguals -- to master words in an invented language that bore no relationship to English, Spanish or Mandarin.

They found that the bilingual participants -- whether English-Mandarin or English-Spanish speakers – mastered nearly twice the number of words as the monolinguals.

And they believe the bilingual advantage is likely to generalize beyond word learning to other kinds of language learning, including learning new words in one's own language and a very basic ability to maintain verbal information.

"After learning another language, individuals can transfer language learning strategies they've acquired to subsequent language learning and become better language learners in general," said Northwestern School of Communication's Marian.

Marian and Margarita Kaushanskaya, now assistant professor of communicative disorders at University of Wisconsin-Madison, are co-authors of "The Bilingual Advantage in Novel World Learning." Their study will be published in the August issue of Psychonomic Bulletin and Review.

The study has important implications for educators who are considering the appropriate age at which to introduce foreign language instruction as well as for parents who in increasing numbers have an option to enroll their children in dual language immersion programs.

"We're seeing that exposure to two languages early in life carries far-reaching benefits," said co-author Kaushanskaya. "Our research tells us that children who grow up with two languages wind up being better language learners later on."

Although there are more opportunities today for children to participate in dual language immersion programs than in the past, parents often avoid them for fear that dual language instruction may end up confusing or distracting their children and inhibit subject learning.

In research presented in the May issue of the Journal of Experimental Psychology, however, the two co-authors demonstrate that bilinguals actually are better able than monolinguals to inhibit irrelevant information while learning a new language. Repressing irrelevant information, after all, is something bilinguals do every time they speak.

What's more, the majority of the world's population outside the United States is bilingual or multilingual, Marian noted. In the U.S., approximately one out of five American households speaks a language other than English at home, according to the U.S. Census. And, with higher birth rates among Hispanics relative to the rest of the population, that proportion is rapidly growing.

Previous research already indicates that individuals who have formally studied two or more languages as adults more easily acquire a new language than monolinguals. New research even indicates that the onset of Alzheimer's disease in bilinguals is, on average, delayed by four years compared to monolinguals.

The Northwestern researchers chose to study bilinguals who learned a second language at an early age and in a non-classroom study to avoid suggestions that their subjects simply were exceptionally talented or motivated foreign language learners.

For their study in Psychonomic Bulletin and Review, the researchers controlled for age, education, English language vocabulary size and, in the case of bilinguals, second language proficiency. Sixty Northwestern University students in their early twenties -- 20 monolinguals, 20 early English-Mandarin speakers and 20 early English-Spanish speakers – participated.

All participants were tested twice for word mastery in the invented language. The initial test took place immediately after they heard and repeated the invented language words. The second test occurred a week later.

Adapted from materials provided by Northwestern University, via EurekAlert!, a service of AAAS.