Access to core subject-area curriculum for students from immigrant backgrounds who are learning the dominant language of instruction has long been a barrier to equitable education around the world, especially in secondary schools. This article explores the promise of Complex Instruction (CI) to address barriers to access for such multilingual…

This article focuses on argumentation in mathematics classrooms in two different geographic contexts, the US and New Zealand. Drawing on data from a case with immigrant students (Pasifika) in NZ and a case with Mexican American students in the US, we argue for the need to study the concept of argumentation through a cultural and language lens. Our…