Your argument is that it is impossible to identify bad teachers because it can't be measured.
Hell - did you even read my posts?
(In reponse to someone saying it can be done)
I completely agree. But that is not what we are seeing in the political arena. Sure there is some valuable discourse going on here but setting up a teacher performance metric with the state of our education system is hard.
Here - I bolded the part to help you out. Clearly your assertion that I said it is impossible is comepletely incorrect
Student performance across grades is better but additional work needs to be done to deal with issues of grade inflation. Also you need to account for major curriculum changes. If the changes affect over x% of teaching days you get an additional y% of additional tolerance for low grades. Give additional leeway if kids don't do their homework. (Some subjects just require additional time to get right. It's not the teacher's fault if the kid doesn't do assigned work at home) Stricter rules about kid's classroom behavior would be immensely helpful.
Hey - there is a basis for a plan right there! I think it can be done just that the needed groundwork for a viable plan isn't being laid.
The fact that they know who the good teachers are means that the fact is at least easily knowable.
Just because someone believes something to be true that doesn't mean that it is actually true. People firmly believe (They would say that they know it to be true) that the Earth is flat. Now - if a large percentage of parents agree that is something else. But blanket statements like yours are part of the issue
My argument is that however you measure it, it is easy to determine who the bad teachers are because kids, other teachers, admin, and parents know who they are. My point is that the problem exists because of the unions, not because it is impossible to know who to lay off first.
You must have missed the part where I said that some teachers are obvisouly bad teachers and that it should be harder to fire them. The issue comes into play when school districts are cutting large numbers of jobs. If you cut 100 jobs and only have 5 obviously terrible teachers, how do you determine who goes next without clearly defined metrics?
Curriculum changes are also very easy to take into account. If it affects all teachers, or some known subset, you can calculate that effect. Kids not doing their homework is also easy to take care of. If a teacher is at a school which is performing poorly because the demographics of the region mean that kids don't have the support at home that they need, that is adjusted for.
Yes - I already addressed that
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