Ask Why until you understand. It's easier to see the mistakes on someone else's paper. A pencil without an eraser may as well just be a pen. It's only fun to play school when you're the teacher. Sometimes the best one in the play has the fewest lines.
Twelve is a lot older than eight.
Sometimes your best move is blocked by your own checkers. Some nights it's not worth fighting over who gets the top bunk. If you don't like the birthday girl, don't go to the party. Crawling still gets you there. If you want a kitten, start out by asking for a horse.