Test the teachers abilities. Ask the pupils themselves what's going wrong. Education is not a competition. This encourages schools to give up on problem students and punishes those in lower-class areas. Internal checks on teachers is a far better idea, make sure every teacher in the system is up to the job.
Good teachers make better schools.
Defend our country. That's 20 billion dollars that could be educating your child. Lowering the age at which violent juveniles can be tried as adults. Ask yourself this, given that children have the most ability to change and learn, what will be the result of placing them in a facility filled with violent and criminally-inclined adults. These people will become their peers.