I worry that the criteria for successful teachers will instead be teachers that are easy or social instead of effective teachers.
I have definitely taken languages classes where I hated the teachers (the class was hard!) but I learned a great deal and actually have pretty good recall years later. If I had been able to bail out and go join my friends in the class taught by the easy teacher I would have, but I certainly would not have learned anything.
In fact, now that I think about it, I think such a system would probably encourage a trend toward treating schooling as a sort of nationalized childcare program, as the money and rewards would go to teachers (and schools) where students are allowed to float through. You can argue all you want about how much you enjoy learning, but I imagine that the vast majority of the people in my high school could have cared less. (There are similar arguments for why private schools do better than public schools: private schools are primarily composed of the kids/families that actually care about what said student is learning.)
trend toward treating schooling as a sort of nationalized childcare program
You don't think that trend is already here? The parents I know who are shopping for more academics in their children's school programs have very limited scope of choice to look for something better, as something better has little incentive currently even to be offered.
I have definitely taken languages classes where I hated the teachers (the class was hard!) but I learned a great deal and actually have pretty good recall years later. If I had been able to bail out and go join my friends in the class taught by the easy teacher I would have, but I certainly would not have learned anything.
In fact, now that I think about it, I think such a system would probably encourage a trend toward treating schooling as a sort of nationalized childcare program, as the money and rewards would go to teachers (and schools) where students are allowed to float through. You can argue all you want about how much you enjoy learning, but I imagine that the vast majority of the people in my high school could have cared less. (There are similar arguments for why private schools do better than public schools: private schools are primarily composed of the kids/families that actually care about what said student is learning.)