Ignoring most of what Ken Robinson said, I would say that good teaching is teaching for a practical purpose, and a good education is an education that someone can actually make a living out of. Teaching dancing classes to people who enjoy dancing is great but here in the real world, almost everyone who wants to make a career out of dancing is not going to make it. If all your education taught you is basic literacy, mathematics and how to dance, you don't have almost any skills which will earn you a job in a capitalist economy. You can't change education and hope the rest of the world, the system would need to be changed before education could be, and the system isn't going anywhere. The current education system is far from perfect but Ken Robinson's ideas don't help a lot of the issues it faces.