Examines the interactions between learners and teachers in a content-based classroom. This book aims to identify patterns of discourse which support both second language development and curriculum learning, and the pedagogical contexts in which they occur. It puts forward a fresh approach to the analysis of classroom discourse. [This] detailed systematic investigation of real life classroom discourse offers great potential for teacher training purposes and also provides a valuable classroom-based research resource for anyone concerned with ESL learners' linguistic and academic growth.