"The word 'evaluation' often has a negative connotation, and it invokes relative emotional responses, such as nervousness, fear and anxiety. However, when approached carefully and in a considerate, respectful fashion, formal instructor evaluations can be beneficial for the instructor, the material, the students and the organization. Scheduled formal and informal evaluations will also serve the purpose of establishing a precedent and routine so that visits are neither unexpected nor looked at with trepidation. The best instructors continually reflect and hone their delivery skills, but it is easy to become complacent as an instructor and teach on 'autopilot,' especially for those who are extremely knowledgeable or considered experts in their fields."
Coffee Break Training - Training Programs and Tips Series No. TR-2014-1
United States Fire Administration: http://www.usfa.fema.gov/