Math With Bad Drawings had a terrific series on how students try to avoid thinking in math class. A quote:
I had a surreal moment this year. I’d almost finished a lesson when one boy, usually a hyperkinetic little bundle of enthusiasm, raised his hand.
“So, like, I don’t really understand anything you’re saying,” he informed me, “But I can still get the right answer.”
He smiled, waiting.
“Which part is giving you trouble?” I asked.
“Oh, you were talking about this extra stuff,” he said, “like the ideas behind it and everything. I don’t… you know… do that.”
I blinked. He blinked. We stood in silence.
“So is that okay?” he concluded. “I mean, as long as I can get the right answer?”