You can't. Children are not the private property of parents. The health, life and personal dignity of minors are protected by law, and no one, including parents, may infringe upon them. Parents have unshirkable educational rights and obligations to their minor children. However, adopting appropriate methods and violent means such as beating and cursing in education will often only bring bad consequences, which will easily arouse their rebellious mentality and be detrimental to the healthy growth of minors.