This article reports on a study that investigated achievement in math of third and fourth grade dual language immersion (DLI) students, building on research that has demonstrated the academic achievement of students who receive content instruction predominantly in the target language. Our study expands the scope and methodology of prior research…

This article provides an in-depth exploration of the language ecologies of two classrooms attempting to implement a two-way dual language (TWDL) program and its mediating conditions. Drawing on ethnographic methods and a sociocultural understanding of language, we examined both teachers' and students' language ideologies and language practices,…

This article documents and interrogates top-down district-wide implementation of a two-way dual language bilingual education (DLBE) program in a large urban district. We carried out a language policy ethnography to explore the way two schools' teams of third grade teachers worked together to negotiate the intersection of DLBE implementation and…

A Mandarin/English two-way immersion elementary program is described from its inception and implementation through the fifth grade, the culminating year of the program. All students in all grades were assessed on their oral/listening, reading, and writing performance in Mandarin using program-created assessment measures. Fifth-grade students also…