Perhaps I'm wrong about this - but I don't think you could pick out a future entrepreneur from a group of children. It's not about how bright you are - although that helps. It's more about their work ethic, drive, what they want from life, etc. It certainly has nothing to do with testable skills such as mathematics, writing, or even programming ability (programming affinity is a different matter...)
You're not picking out future entrepreneurs per se you're just getting the best kids. The odds are some of those kids are going to want to start their own company and when they do you are in a perfect position to help them and recoup some costs if it takes off. When you do find an entrepreneur it's just the prize in the cereal box, you're still teaching the children and getting paid to do it.
