Object: a few test papers, with the letter grade in bright red ink Good morning, boys and girls.

Are any of you in kindergarten or preschool? It's fun, isn't it? You learn all sorts of new things. And once you get to kindergarten or preschool, you have to start taking tests to see if you're learning everything you should. If you do well on the test, if you answer all the questions right, you get an "A." That's the best grade you can get. If you don't do well on the test, if you answer the questions wrong, you might get a…