All of these students should just sit around and teach each other. It's obvious that nobody else need waste their time trying.

Over 90% of teachers are bullies, controlfreaks or pedos.
With most of them you have to teach the matter yourself,
even in classes you have to pay for. And the system is meant to be that way.
Read Donald Jeffries new book:
Bullyocracy: How the social hierarchy enables bullies to rule..
A real eyeopener.

There was a math teacher in highscool, which was so good at her job, that not a single pupil had grades worse then Cs. Most of them As and Bs.
She was told that the schools job is to sort out those who make it and those who don´t, and transferred to another school!!!