Not sure what you mean. You don't want disincentives for teachers -- it's already an issue where good teachers trying to improve rough schools get associated with poor performance through no fault of their own.

Incentives need to be based on obtainable goals and targeted improvements. Payouts (bribes!) to students for good grades and scores actually really work. Money helps kids internalize the societal value placed on their performance. Similarly, targeted bonuses for teachers work too, but only if formulated relative to the characteristics of enrolled students. See the literature by R. Fryer, for example