My daughter just turned five in November. She has always had incredible insight, even on things that I did not "teach" her. So we started kindergarten when she was 4, and take it slowly since we aren't stuck in "grade levels." In her math book yesterday, she had this problem:
If you have 4 pennies, could you buy all of this candy? (Five pieces of candy are shown.) "No," she says. (It is already stated that one piece of candy costs one cent).
"How many could you buy?" I innocently ask.
"Well," she responded, "you could get none, or 1, or 2, or 3, all the way up to 4."
My face just froze and I dropped my head and laughed. Another great answer from my insightful five year-old. And THAT'S why I homeschool!