This document defines different teacher roles and provides examples of activities where each role would be appropriate. The main teacher roles discussed are:
- Diagnostician: Finds out students' needs, interests, strengths and weaknesses.
- Planner: Chooses materials and methodology before lessons.
- Manager: Organizes classroom activities and manages student interactions during lessons.
- Other roles include informer, involver, language resource, facilitator, counselor, and assessor. The document provides a lesson example and matches teacher roles to different activities within the lesson.