The naughty boy shows that he is smart and won't stick to the rules. They have their own opinions and personalities. Therefore, as an enlightenment teacher, please don't kill children's personality in the cradle (China's current education always kills children's personality, but there are other excellent personalities that can't be cultivated). We should keep their unconventional personality.

But these bad habits should be controlled and corrected with practical actions, not verbal criticism. Giving others what they deserve is the best education. This is called frustration education. He likes playing tricks on others. You should lead the whole class to play tricks on him, and then apologize to him in front of the whole class, so that he can have a taste of being teased. I think this will also be a lesson for him, so that he can learn to care about others without killing his personality. This should be a good idea.

As for how to make them ugly, you can figure it out yourself. I don't think it should be difficult. A child can think of it, and I think as a teacher, so can I.