The Instructor who supervises a Supervised Demonstration, Bench Assist, Co-Teach, or Supervised Teach.
During Bench Assists and Co-Teaches the Supervising Instructor is ultimately responsible for the learning experience of the students in the class as well as for giving feedback to the trainee/Instructor who is doing the Bench Assist or Co- Teach.
After a Co-Teach to add a class, the Supervising Instructor determines if the Instructor is qualified to teach that class solo and if so, provides a letter of approval.
During a Supervised Teach the Supervising Instructor is completely in the role of observing a trainee's teaching, giving feedback outside of class, and writing an evaluation. During a Supervised Teach class credit is given to the students by the Supervising Instructor.