Spaced repetition should be automated by inserting it into the most popular games that education authorities can license in bulk. So students get to play their

Spaced repetition should be automated by inserting it into the most popular games that education authorities can license in bulk. So students get to play their favorite games for free but they have to do spaced repetition learning to get to the next level in the game. Doesn't require school buildings or teachers. Teachers should be incentivized based on the grades gained by their students during their tutelage. So grades gained = grade after - grade before summed over all students.