Among the major, developed industrial nations, the United States is the most resistant to reform in this regard. But gradually more states are banning school corporal punishment, and in the states that allow it, a growing number of school districts are forbidding the practice. Still, there remain many teachers and school administrators who, like many parents, are unenlightened on this issue and persist in believing that it is okay to manage pupils by means of physical violence or the threat of it. If you knew that a school bus had bald tires and faulty brakes, you would not let your child ride that bus and you would demand that your school authorities correct the problem immediately. If you knew that the air ducts in your school were contaminated with asbestos, you'd remove your child immediately and alert other parents to the danger.
Corporal punishment is no different.
It is very dangerous and all sensible people in the community should unite in opposition to it. As a parent you have a right and an obligation to protect your child from known danger. Inform your local, regional and state education authorities that no one has your permission, nor the moral right, to endanger your child at school.