It seems you both describe the second phase of the conversation and are into the business of the teacher who hasn't yet failed to achieve the first set of expectations which to me are:
* My kid loves to learn and is excited to go somewhere that he can learn all day long, please don't disappoint him.
* Like most kids, my kid seems to learn best and is very happy at the level where he is comfortably challenged.
* Though my kid can learn a lot by himself, he thrives even more with some instruction at his optimal learning level.