The Handbook of Classroom Discourse and Interaction (Blackwell Handbooks in Linguistics) offers an interdisciplinary approach, presenting a series of contributions written by educators and applied linguists that explore the latest research methodologies and theories related to classroom language. Organized to facilitate a critical understanding of how and why various research traditions differ and overlap theoretically and methodologically, this handbook discusses key issues in the future development of research in critical areas of education and applied linguistics. It provides empirically-based analysis of classroom talk to illustrate theoretical claims and methodologies, including multimodal transcripts, an emerging trend in education and applied linguistics, particularly in conversation analysis and sociocultural theory.