[etempleton]

Teachers can be fired for poor performance. It is just rare, because proving poor performance is dubious in education. Good teachers want bad teachers out. There just isn’t a motivating force for the supervisor to do it unless the teacher is truly a harm to the kids.

Everything going on in education over the past 20 years has been to add that overarching, cross school performance metric to measure teachers against each other. The problem is:

1. How do you measure performance? Tests. What will any educator or student tell you? Ends up test performance doesn’t really correlate much to the quality of the teacher. What it does correlate well to is income of the student’s parents. You teach in a school that serves low-income families? You’re fired. Also tests don’t factor that some students are special needs. You have a lot of special needs students in your class one year? Sorry. You’re fired.

2. No one could seem to find the money to incentivize good performance of teachers. Just fire poor performers based on dubious criteria. Not exactly motivating.

3. Outside of test scores, which are a bad representation of teacher quality and easily manipulated, there isn’t a driving force to fire teachers.