In the NYT Magazine, the Ethicist (Randy Cohen) responds to a high-school English teacher who wants to offer $20 to the student who scores highest on the next exam. Surprisingly, Cohen embraces the idea, though he warns that the "reward seems too small and its eventual arrival too remote to be a goad to learning. But that's a question best left to the teacher, and to the state legislators, who will no doubt be delighted to allocate adequate funds for the next round of 'Name That Nabokov Character.' "
It beats making a life-size car out of SweeTarts.