Why Tiny Increments Beat Bulk Learning

And why gobble-gobble learning is not such a good idea.

Photo by Sheri Hooley on Unsplash

In 1954, Toru Kumon, a high school maths teacher in Japan, found his son struggling with math in elementary school. To help him practice, he started giving him simple maths problems to solve every day.

He discovered that when the degree of difficulty was only slightly high, his son did well. But when the degree of…