In the United States, headmasters and teachers discipline(管教) students in several different ways. Usually, the teachers will write to or call parents of naughty students. If a student behaves(表现) very badly, the headmaster can stop him or her from having classes. But Mr Lazares, the headmaster of a middle school in Ohio, doesn't like to do so.

    Once, a boy behaved badly in class. Mr Lazares telephoned the boy's parents. “If you come to school with your son, I won't stop him having classes," he said. The boy's father then came to school and went to every class with his son. Other students kept looking at the boy and his father. The boy was embarrassed. After that, he behaved better. Other students behaved better, too.

    Now headmasters all over the USA are trying Mr Lazares' idea. They also think that students will behave better if they don't want their parents to come to school.