When teaching, often, the instructor learns as much or more than the students. While that comment does not sound quite right, it often happens. Good discussion point. Professional development comes in many shapes and sizes and should be part of a good instructor’s lifestyle.
A mentor can provide: Guidance A good role model Constructive criticism to help you grow (personally and professionally) Insight from experiences.
Let us not forget the world wide web as and endless source of information.
National system will give consistency across the nation.