Teacher in Role is an educational technique used especially in the teaching of drama and dramatic literature, however its applications can span across the entire subject spectrum.
Educators utilising the technique adopt a character or 'role', with the intent of engaging typically younger students in a fictional or historically inspired setting to convey desired concepts, attitudes and ideals.
Teachers choose roles carefully in order to engender different interactions and dynamics within the context of the dramatic environment.
One of the best teacher in roles practices in this manner is a TV talk show interviewing various people (students) from educational books/stories.
The teacher is generally in-role in Mantle of the Expert, and provides a structure upon which the students can build to gradually progress to more independent learning.