Handle the problem correctly
In class, there are always some students who are very naughty and make the teacher have a headache. If we regard it as a challenge to the teacher's authority, maybe we will lose the whole class because of a moment of anger. But if you think calmly and handle the problem correctly from the perspective of students, you can avoid losing big because of small.
Take it easy to answer
Of course, necessary criticism is indispensable, but attitude and method are crucial. Try to deal with it calmly and let the problem be solved peacefully.