This book offers a new methodological framework for the CLIL classroom, focusing on how to guide input and support output. Full of real-life examples and practical guidelines, the book provides support to both novice and experienced CLIL teachers. Areas covered include: the language used in CLIL; CLIL teacher training; materials design for CLIL; assessment in CLIL. Extra resources are available on the website: www.oup.com/elt/teacher/clil Phil Ball is a CLIL author and teacher trainer based in northern Spain. Keith Kelly is a writer and speaker on CLIL worldwide, and is based in Plovdiv, Bulgaria. John Clegg is a textbook author and CLIL consultant based in London.