Everyone should be taught according to their ability. It doesn't make sense to mix people who learn at different rates into all the same lectures and the same overall grade system. Why make children spend 8 (boring) years in elementary school if some of them could have learned the same material in 2-6 years? Why hold children back from achieving their potential just because they have a higher potential? Gifted schools is one solution but there are many other possibilities as well:

- more tracked classes

- let people advance based on what they learn instead of based on their age

- individualized technology-based instruction instead of large lectures