Robert Fried says...

There is a simple test we can perform to find out whether or not our children are truly learning. We can ask them, not the usual question, "How was school today, Honey?" or "What did she teach you in your math class?" but rather, "Did you learn anything in school today that you really want to know more about?" If the answer is ... usually no, you have cause for worry - even if your child brings home a good report card. [The Game of School, p. 7]