"The "smart" kids are the ones who are done first, the "stupid" kids are "slow". It is such the wrong message."
What would you propose doing? Elementary school is tough because there is so little tracking, and I am not suggesting that there be. But by third grade, the gap seems to start and I am talking in the same class with the same teacher. I suppose that you can give the faster kids more difficult work but then you can run into a problem with going through the layers too fast. And it is hard to advance them too much in elementary school because of other practical issues.