The document discusses the teacher's role in the educational process. It identifies several common teacher roles including planner, assessor, manager, language resource, and reflector. As planner, the teacher prepares lessons and anticipates problems. As assessor and monitor, the teacher evaluates learner performance, behavior, and progress. As manager, the teacher controls the classroom dynamic and maintains discipline. The teacher acts as a language resource by clarifying language and modeling. As reflector, the teacher reviews lessons to improve teaching. A teacher may take on different roles depending on the lesson, stage, activity, and learners.