You have to check out how he went off on his teacher about it and he did it with respect due to the lazy ass teacher he had. Apparently, she was just giving them packets to read and that was about it.
In a perfect world, teachers like that would be dimissed and fired. Unfortunately, we live in a world where their unions protect the lame ones as well as the good ones. Again, unions are good and have a purpose but when they become beasts themselves, it's not helping its members but themselves and hurting the businesses or workplaces they serve.