Pólya, ainda

"When a student makes really silly blunders or is exasperating slow, the trouble is almost always the same; he has no desire at all to solve the problem, even no desire to understand it properly, and so he has not understood it. Therefore, a teacher wishing seriously to help the student should, first of all, stir up his curiosity, give him some desire to solve the problem. The teacher should also allow some time to the student to make up his mind, to settle down to his task."

É auto-ajuda, eu sei, mas me fez bem quando li.