> We might waste the time of the kids that are going to end up flipping burgers, but we don't waste the time of the brighter kids. I would have said we really

> We might waste the time of the kids that are going to end up flipping burgers, but we don't waste the time of the brighter kids. I would have said we really waste the time of the brighter kids. (Though we waste their motivation more.) We just waste it in a different way. Bright kids could pick up the math they need in a very short period of time on their own, but we present the material only in drips and drabs at a glacially slow pace with lots of repetition, working on the assumption that they're not really paying attention and probably forget everything during breaks.