"Do these scores go on my transcript?"
"I don't care about these. I have to study for my AP tests."
How weary I grow of such self-centered whining.
My usual response to the "does this matter, why do we have to take these" cries is to give a few facts and then to say, "You still may not think these are important, but I do. If you trust me and respect what I say, then do your best on these because I think it's important."
Perhaps now I have an even better response, although the response still, in my mind, reinforces narcissism. Here's the closing:
If intrinsic motivation matters in career success--and I think it clearly does--then what is the impact of not-so-subtly teaching kids that they need not do anything for which they are not explicitly rewarded?
You might say that that closing isn't earth-shattering, but it takes on much more importance after you've read the whole thing. It isn't long, and it's very worth your while.