Steve, Never been in teaching as such, but used to be a part time assessor with a local college, found that students liked to talk to people that have hands on knowledge of the trade. Theoretical solutions somtimes need to be tweeked with a touch of real world practice. Students love that. Students very mutch apreciate the fact that you have been in the field and tried to solve the same problems as they have. I agree with CPAL you will probably learn almost as mutch as the student, but do stay in command at all times. Good luck
