They might have compassion burnout. They probably loved kids when they started, but the conditions of the job made them too unhappy to care. They are not the problem. The job conditions are.
@fab_maurin@DrBradJohnson Only if those topics generate interest. Reading Catcher in the Rye, for example, does not. Solving equations. I don't think so.
@alfiekohn Also, high school grades do not reflect work performance in those that didn't go to college. In the academic house of mirrors, past grades are reflected as future grades.