This post has a lot of very good points in it. In many cases pseudo instructors make it very complicated when there is no reason for it to be. Equally as true is that requiring a teacher to be a 100 ball runner is unnecessary. The idea that a teacher must be able to demonstrate what he is teaching is complete nonsense. A teacher must be able to observe and then communicate the correct method which will improve the student's game. Actually improving the student's game is the responsibility of the student which is accomplished by time at the table.
Sidenote: I was playing a guy once who made the object ball jump another ball to get into the pocket. I told him I had no idea that could be done. We then went on to discuss that I thought he knew a lot more about pool than I did at the time. He disagreed on the grounds that if he knew more than I did then he wouldn't be getting the 7 ball in our current match.
Moral of the story is that knowing and doing are two completely different skills. Just as teaching and doing are....
Ken
You can call it nonsense if you like. You may also observe and communicate until you are blue in the face and get nowhere as an instructor and a frustrated student.
If you have knowledge and can perform, the student will be in a much better position to learn and learn at a much quicker pace.
Putting all things aside (stance, head position,grip,bridges,vertical forearm..etc.etc. All important teachings but the stroke is everything.
This is where an instructor should be able to perform. There comes a point, even sometimes before the student ever attempts the stroke is where an instructor should say, let's do a 5 min visual and watch the stroke ( I will perform it ) He must also tell the student not to watch the ball go in the pocket but watch my delivery stroke until completion. I guarantee you will catch the student watching the ball; you must catch them in the act and correct that.
Humans are visual creatures, monkey see monkey do. When a student sees you performing a pure, clean smooth delivery stroke and the cue ball is doing what you are trying to achieve they have much more confidence in the instructor and feel if he can perform it so can I. If a student should ask to learn 3 rails and out with running English at 2 click and the instructor can't perform it I see an issue. A student can only accomplish what they learned at the table. If they were only told and not visually shown how could they be responsible for something they only heard about? I WANT A REFUND.
If I am a student and expect to learn nip draw, force follow, stun, jump, power draw etc. etc. you can bet your life I want an instructor who can perform it and not one that wants to talk me through it for 12 months.
A husband and wife can look each other in the eyes and not say any words, but they know they are saying I love you. A son or daughter can hit the game winning shot and look at their parents and through the eyes they can see they are proud of them...ALL VISUAL
Moral of the story: Visualization cannot be duplicated verbally, combine the two and now you have an instructor.