The damage that a bad teacher can do to dozens (or hundreds of students) is incredible, and most of that damage is unrepairable.
But the people in charge only look at things statistically, and will gladly sacrifice those, if they believe the overall results are acceptable.
Bad teachers are bad for many reasons too. Some are incompetent, stupid, visionless, and unable to see what goes on in any child's head (let alone in 30+, each an individual), but some are toxic. Borderline personality disorder, abusive, bullying, dismissive.
And you can't even easily sort them. There's no test that will let you find any of the bad teachers reliably, or a test that will show only the good. If we throw more money at the problem, if we "pay them what they deserve", how do we filter the opportunists?
But the people in charge only look at things statistically, and will gladly sacrifice those, if they believe the overall results are acceptable.
Bad teachers are bad for many reasons too. Some are incompetent, stupid, visionless, and unable to see what goes on in any child's head (let alone in 30+, each an individual), but some are toxic. Borderline personality disorder, abusive, bullying, dismissive.
And you can't even easily sort them. There's no test that will let you find any of the bad teachers reliably, or a test that will show only the good. If we throw more money at the problem, if we "pay them what they deserve", how do we filter the opportunists?