Three education level by efficiency starting from the least efficient:
- Learning from “delivered information”. This is widely used for centuries and are used today. The least teaching-learning efficiency.
- Learning through shared experience and the dialogue that ordinarily accompanies it. Also know as flipped learning, you can observe this kind of learning at Khan Academy.
- The most effective learning is autonomous, firsthand, curiosity-driven, wide-ranging, self-directed, trial and error, immediate feedback, personal experience. Might be observed in Ad Astra school that Elon Musk created for his kids.