The author makes some very good points, but seems to have missed the real punchline. Instead of making this about experts-vs-non-experts, the real lesson is the

The author makes some very good points, but seems to have missed the real punchline. Instead of making this about experts-vs-non-experts, the real lesson is the value of pretesting and similar methods. http://www.nytimes.com/2014/09/07/magazine/why-flunking-exams-is-actually-a-good-thing.html http://www.nytimes.com/2014/09/07/magazine/why-flunking-exam... The basic idea is simple. Instead of "telling people the answers", let them bang their heads against the wall first, trying to solve a problem that they have never studied before. Once they've realized that they don't know how to solve the problem, then teach them how to do so. This way, because the students have experienced the frustration of solving the problem themselves, they'll truly appreciate whatever knowledge you provide that can help them out.