But you are not an ordinary college student, are you? This is not a big problem. The key point is that if you don't tell me that you are not an engineering student or a science student, then you are not qualified to teach mathematics in high school. If you are an engineering student or a science student, you can come out to teach high school mathematics. The key is not the difficulty, but the question of whether or not to hire you by studying and thinking about teaching AIDS.