Given all the knowledge that you currently possess....
Consider this hypothetical situation:
Let's say you had limited access to a time machine with only 1 use before it does not work anymore. You only have 1 moment in time to go back to. This 1 moment in time is limited to a specific instant: this one instant in time is the very first time you ever pick up a golf club and you are in the physical and mental prime of your life (remember, this is hypothetical).
Assume that you have a clean (golfing) slate to work with, an attentive student and unlimited time to get your point accross.
With all the information/knowledge that you currently possess about the golf swing:
1) What would you want your student to have complete understanding of before the end of the lesson ?
2) How would you help your brand new student achieve this understanding ?
3) How would this new student do with the game of golf if they applied the information that you gave them every day for the rest of their lives ?
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"Golf is not a subject but a motor skill which can only be learned and not taught." - Michael Hebron
"The Body, Arms and Hands have specific assignments during the Golf Stroke, and they must be coordinated into one efficient motion." - Lynn Blake