According to my observation and knowledge, the stereotypes and prejudices that exist in our group in our society are due to the fact that people do not know themselves very well. They simply rely on common sense or what others told them to judge others, rather than getting to know people on their own and lack of education. There are many ways to combat stereotypes. First, put yourself in their shoes. Like in the video, because the teacher let the children experience how they felt when judged by others, so that they would know how others felt and not cause harm to others. Second, let people in. Get to know them. When you're feeling unsure, go say hello and get to know them. Maybe you misunderstand them. Finally, be educated. Don't easily believe what others say