My sensei has been teaching from his dojo for many years. Over time he has also taken up teaching one of the local colleges. I have been helping out Sensei at RPI (I graduated from there, what can I say). At his encouragement, approval (and strict oversight) leading one of the weekly classes there. I have been showing what sensei wants taught: basics basics basics. Most of the students are untested, 5th Kyus and a couple of 4th Kyus (USAF Testing requirements). The RPI students are not normally ready to take difficult throws-between only two classes a week and having the summers off, training at RPI doesn't allow for alot of frills before they graduate and move on. I will state first up: I have not tested for my black belt, I am a 2nd Kyu and working on my 1st Kyu (Probably late next year).
This year an overseas student started at RPI and joined the class. He had previously tested overseas for his black belt. He has a different way of doing things (technique, ettiquette etc), as befitting that he learned from a different instructor.
A couple of issues have cropped up: This student (I'll call him K) has a different way of doing things and is having some issues adapting to how Sensei wants to see things done. Sensei wants the basics first and foremost. K has been known to go off and do his own thing during class, or showing things or methods that Sensei had not shown, which Sensei has addressed to him on more then one occasion.
Okay.... enough back story. Sensei has allowed me to teach one of the classes without his supervision. He gives me instruction as to what he wants to see done at some other point in the week when I see him at the main dojo. The Thursday before Thanksgiving K informed me before class that he wanted to lead class that night, he was the senior student and thus wanted to lead class. Needless to say an awkward position for all around. I politely declined stating that Sensei had left me instructions as to what he wanted covered in class that evening.
I have spoken to Sensei since then and he has that he wants me teaching that class and not to give it up to K. Sensei has a way he wants things taught and since K has not been around much (despite frequent invitations to come up to the main dojo to practice with the main school) Sensei would prefer that I teach that class.
I am looking for a graceful/face saving method of informing k that Sensei has instructed me to keep teaching that class. I don't want to insult him, I don't want this to spill out all over the place and disenfranchise the junior students, but I have to be able to provide correction to the other students based upon what I feel Sensei wants instructed.