If you were to ask Coaches and Fans about umpires teaching other umpires the Strike Zone, they would say it is impossible. Why, because none of us knows where it is !
The fact is, you can't just teach the location of the Strike Zone (SZ).
You have to teach how to
Call Pitches.
Many of us have argued that there is more to a Strike or Ball than the flight of the ball. The SZ is an ever moving target for each batter. It is effected by the Catcher, and sometimes, even the Batter.
I never just teach a new umpire the SZ, I always teach them
"The Art Of Calling Pitches".