The teacher is a planner before the lesson as she thinks about and prepares what he or she is going to teach.

The teacher is an informer when he or she provides learners with detailed information about the language or about an activity.

The teacher is a manager when he or she sets up rules for behavior and organizes the learning space.

The teacher is a resource when he or she can be used by the learners for help and advice.

The teacher is a monitor when he or she is able to recognize the cause of learners' difficulties.