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Re:Should gifted students go to a separate school? by stevejb on Wednesday January 25, 2017 @02:06PM (#13484779)
When I was a kid, I would happily teach another kid something if that kid was generally smart. It was an investment of time. There was the possibility that they could teach me things.

For a given pair of students X and Y, it may be a poor investment for X to teach Y anything, if X will almost surely dominate Y within the problem domain. It would be stupid to force X to teach Y in this setting.

Re:Should gifted students go to a separate school? by ZeroGravitas on Thursday January 26, 2017 @06:21AM (#13490468)
I think the general argument is that attempting to teach something, forces you to work with the material in your own head in a way that improves your own understanding. This is similar to "rubber duck debugging" where explaining a problem to an inanimate object leads you to the solution. But interacting with an actual human being often helps too.