I completely understand your situation because I had a similiar one, lol... What I did was referenced what I learned in the FOI portion of the CFI training about how students learn. We all learn different ways and it's up to the instructor to present the material in way we have a clear understanding. Now with that being said, remember your instructor is not there to teach you everything all over again-but he should be teaching you how to teach the material you already know. I completely see your frustrations, because like I said it happened to me. I think if your honest and explain to him that you may need a more structured approach/classroom environment, he would respect that. Also tell him you want to be part of his team in the future and would going to another school for training impact that endeavor. Good Luck to you!