The document discusses the various roles that a language teacher must take on to be effective, including guide, observer, controller, prompter, tutor, organizer, assessor, participant, and resource. As a guide, the teacher shows students techniques for learning a new language. As an observer, the teacher watches student activities without interacting to evaluate their understanding. The controller role involves explaining new grammar structures and rules. A prompter motivates students and gives clues when they get stuck. Other roles include working individually with students as a tutor, planning and structuring lessons as an organizer, providing feedback and corrections as an assessor, participating in activities alongside students, and serving as a source of information when students have questions. Taking on multiple roles