Communicative Language Teaching (CLT) originated from changes in British language teaching in the late 1960s that rejected a focus on grammar mastery and emphasized communicative competence instead. CLT is based on theories that language is communication and is acquired through use. It aims to make communication the goal and teaches language skills interdependently through meaningful tasks. CLT lessons typically involve group work, information sharing activities, and role plays to encourage risk taking and free practice using language for various functions.