forget the teachers and parents. Go directly to the kids and pay them. Make it competitive. Do that and the kids will push themselves despite poor teachers and curriculum. If they have internet, they will find out the best way to learn on their own. Everyone else will; learning math will be part of the culture.
This will work only with the minoroity of kids who are self-directed. There are plenty of bright kids, kids with high I.Q. who have no idea of what information serves them well and what does not. The autodidact historically is a person who cannot compete with a dimmer but better directed kid. The former is, more often than not, like the natural athlete who doesn’t know the “fundamentals” of the game. Now I am not talking about the Bill Gateses or the
Tom Edisons of this world, but the usual.