Teachers (or their unions) often lead the charge for the very policies that hinder performance. Some of these are done in the name of equity (local metro school districts are a prime example).
Ultimately, teachers alone can't solve the problem. As seen in both poor white rural schools and poor non-white urban schools alike, if the parents don't care about schooling or enforcing any discipline at home, there will be significant problems at school.
Ultimately, teachers alone can't solve the problem. As seen in both poor white rural schools and poor non-white urban schools alike, if the parents don't care about schooling or enforcing any discipline at home, there will be significant problems at school.