- Yes, they should

        Because: Some students are naughty, do not follow to teacher's instructions, do not complete their homework 

- No, they shouldn't

        Because:

          - make students be depressed when they go to school =>Explain: school is a place that children go to learn new things and enjoy

          - Some teachers use punishments that are violent and not suitable for punishing students( Ex: to beat ruthlessly, even fatal penalty

In a world where it becomes increasingly difficult to spank your child without fear of the men in the suits coming to get you, it's important to remember that discipline is clearly defined as such: To train students to obey rules or a code of behavior, using punishment to correct disobedience. Discipline is simply training a youth to perform a certain way by instructing them to repeat an action over and over in multitudes of repetitions until the action becomes natural. We as humans do not naturally respond to questions with "Yes Sir" or "Yes Ma'am", these are manners and using them requires discipline. Over time, parents should accumulate numerous lessons to teach their children, upon each successful lesson learned through repetition, the child gains a discipline, when enough of them are gained...The Child is disciplined. Not only is the child trained specifically in what you want them to do, but they have the understanding of how to discipline themselves as young adults and grow into fully mature, disciplined people.