This book offers a close investigation of interactional practices in L2 classrooms, and provides a deeper appreciation of the processes involved in the co-construction of understanding and knowledge in settings for instructed language learning. Using Conversation Analysis, and referring to epistemic, multimodal, and multilingual resources, Olcay Sert closely examines the verbal and nonverbal features of teacher-student interaction; for example, gaze, gestures and orientations to classroom artefacts. With an emphasis on the multimodal and multilingual resources, this is one of the first studies to comprehensively address these issues in L2 classrooms with a clear theoretical and practical underpinning, and is an essential study for researchers and postgraduate students in TESOL and Applied Linguistics. Studies in Social Interaction publishes research monographs that place social interaction at the centre of discussion. Each volume presents a clear overview of the work which has been done in a particular context, provides examples of how data can be approached and used to uncover social-interaction themes and issues, and explores how research in social interaction can feed into better understanding of professional practices and develop new research agendas.