Also see:

1 Million More Tutors in the US — from typeshare.co by Kevin Zhang

Excerpt:

There are roughly 17M US high school students across public and private schools. If the top 6% of US high school students were tutors, we would have 1M more tutors.

Imagine what that would do for our US K12 education system and our society.

There are 1M high school teachers currently in the US. We would have an additional tutor per teacher.

So how do we incentivize students?