As a martial arts coach, as a dojo-cho, timing is important.
With what one has been shown, given, and learned- learning from mistakes made, one should be able to see and inspire those training with them to not only make the same mistakes, but learn quicker.
If it took me six months to begin to understand something, can we have others understand it in half the time?
When they have to pass it on, again the time is cut in half.
A synergy in learning.
Often in class when one demonstrates a martial arts technique it is first shown without explanation.
The idea is for those in class to be able to *see* and *capture* the technique in the moment- a chance to grab the distance and timing, develop that martial arts intuition.
Breaking up in small groups to practice follows, later showing the technique again while pointing out some of the movement points- a chance to see and cultivate what was missed.
Feeling is also important- a chance for the instructor-coach to come around and do the technique on those in class- so they can experience first hand what happens regarding distance, timing, rhythm, and how it expresses itself.
Walking around class and watching those working on the technique, just as in an encounter, the distance is important.
The closer the teacher gets to the student performing the waza, there more it changes.
Perhaps they get nervous they will be criticized, so the performance of the waza gets worse.
Maybe realizing that the teacher is near, and *watching* them , they put more focus in the technique and actually do it better- showing what they are capable of.
The position of the teacher is important.
When observing training, when watching a student, in establishing a baseline of just how well a student is working on a waza, it is best done from a distance, so it appears if one is not being watched.