To learn new things, we must sometimes fail. But what’s the right amount of failure? New research led by the University of Arizona proposes a mathematical answer to that question.

Educators and educational scholars have long recognized that there is something of a “sweet spot” when it comes to learning. That is, we learn best when we are challenged to grasp something just outside the bounds of our existing knowledge. When a challenge is too simple, we don’t learn anything new; likewise, we don’t enhance our knowledge when a challenge is so difficult that we fail entirely or give up.

Source: Learning is optimized when we fail 15% of the time | EurekAlert! Science News

So, your solid B students? They are doing it right! And now I have vindication for a lot of my grades through HS, but those are based more on that fact that I procrastinated and rushed through the work instead of failing…