Grounded in the cross-linguistic influence(s) (CLI) literature, this study used objective measures to compare the use of English, lexical richness and syntactic complexity, and grammatical accuracy and fluency in the texts of three groups of Grade 6 French immersion students: Canadian-born anglophones (C-A), Canadian-born multilinguals (C-M), and…

This essay offers a candid overview of the past one hundred years of preK-fifth grade Spanish language teaching and learning in the United States. Among the topics addressed are numbers of programs, program models, and factors that impact the success of learners and programs.

This article recounts three studies that portray an evolution from research examining the effects of researcher-designed instructional interventions to research examining the impact of helping teachers to design their own instructional interventions. Study 1 investigated the effects of an instructional treatment designed by the research team on…

Schools in Ireland vary in how they introduce reading in the two official languages, Irish and English. There is particular variability within immersion (Irish medium) schools. Some introduce Irish reading first (IRF) and others English reading first (ERF). This study compared the development of Irish and English skills in children attending…

Two-way immersion schools are growing in popularity throughout the United States. An emerging issue is to what extent these schools are able to connect with parents from multiple communities. This article describes an effort to connect parents with the school and one another through parent language classes at a Spanish/English two-way immersion…

The aim of this paper is to analyse some aspects of development of Basque as a second language (L2) in children for whom Spanish is their first language (L1) who attended immersion school in Basque in a Spanish-speaking sociolinguistic context. Data consist of oral story retellings produced in a classroom setting where the same children…

Effectively engaging students in mathematics discourse is challenging, especially in a language other than the one in which you learned mathematics. Teachers must manage the academic as well as social function of language. In Spanish-English bilingual classrooms in the U.S., changing the language of instruction to Spanish may not be enough to…

This article focuses on qualitative self-report data from a mixed-methods study which investigated Grade 5 and 6 (n = 274), 11-12-year-old, Irish-medium (IM) immersion students' improvement in linguistic accuracy in response to an explicit-inductive approach to form-focused instruction (FFI). A series of typographically enhanced PowerPoint slides…

Using data from seven cohorts of language immersion lottery applicants in a large, urban school district, we estimate the causal effects of immersion programs on students' test scores in reading, mathematics, and science and on English learners' (EL) reclassification. We estimate positive intent-to-treat (ITT) effects on reading performance in…

Dual-language immersion is an educational practice in which "literacy and content instruction" is provided in two languages at school (Howard et al., 2007, p.1). The students in these programs have been the center of many studies including student literacy development (Genesee & Jared, 2008), academic achievement (Lindholm-Leary,…

In the present day Mandarin Chinese has become a commonly taught language in the U.S. Mandarin is widely taught in colleges and universities; K-12 Chinese programs, including immersion programs, have also grown rapidly. However, to date little research has been conducted on the latter programs. This study examines immersion programs in elementary…

Using data from seven cohorts of language immersion lottery applicants in a large, urban school district, we estimate the causal effects of immersion programs on students' test scores in reading, mathematics, and science, and on English learners' (EL) reclassification. We estimate positive intent-to-treat (ITT) effects on reading performance in…

We describe research results and lessons learned from a laboratory/ classroom collaboration with a school system offering both traditional English-only education and a dual-language track (Spanish/English). Through this collaboration, we addressed basic research questions informing malleable factors that impact cognitive development. In a…

This study considers the opinions of dual immersion elementary school principals in investigating the following research questions: (1) What do dual immersion principals identify as the skills and traits for the school leader that lead to the principal's success in a dual immersion context? and (2) What were the differences of opinion, if any,…

Two-Way Immersion (TWI) programs have demonstrated positive outcomes in students' academic achievement in English, yet less is known about content teaching and learning in the non-English language in these programs. This study uses math instruction as a lens to identify pedagogical strategies and challenges in the teaching of math in Korean to…