> There's been an important shift in education in the last 20 years: a push for lessons to be short, entertaining and unchallenging. When students struggle with

> There's been an important shift in education in the last 20 years: a push for lessons to be short, entertaining and unchallenging. When students struggle with tasks, in many cases they are just told not to do them. I was in school 20 years ago. That is not my recollection. Lessons were long, focused and challenging if you engaged.