This book focuses on communicative classroom language for bilingual education and aims to equip language and content teachers with real, updated English expressions of direct relevance in CLIL (Content and Language Integrated Learning) contexts. To this end, it presents a theoretical backdrop with the rationale underpinning the proposal and three sets of tried-and-tested original activities, classified according to type of lexical chunk, function, and level (Infant, Primary, Secondary, and Tertiary Education). Students are encouraged to move from more controlled and basic stages of identification of these types of communicative chunks towards a freer type of production, through a wide variety of originally designed and piloted activities based on multimodal texts (gap-filling, matching, tic-tac-toe, sentence completion, error correction, T/F, multiple choice, ordering, odd-one-out). A full glossary is also provided with 330 useful expressions, as well as an answer key and printable posters and cut-outs which are directly applicable in the CLIL classroom.