From the article: > A teacher, faced with a bored student, would not force them to pay rapt attention to an identical lesson 30 times in a row, 5 days a week,

From the article: > A teacher, faced with a bored student, would not force them to pay rapt attention to an identical lesson 30 times in a row, 5 days a week, for the entirety of the school year. The nice part of doing it as homework is that if it's boring and the kid runs away, it's a parent failure instead of a teacher problem.