Social aspects of second language acquisition (SLA) and the contexts in which people attempt to learn and use languages and seek to become integrated within new and changing cultures have been examined for decades from various theoretical perspectives. In this article, I present some of the ways in which 'social' experience is being theorized in…

This study examines the simultaneous use of English and Chinese by speakers of Chinese as a heritage language (CHL). It focuses on spontaneous, dynamic, and high-density mixing of the two languages within the smallest building block of a speaking turn: the turn constructional unit (TCU). Drawing upon data from different age and proficiency groups,…