Actually, you don't have to be shy. Confucius said, "You are sensitive and eager to learn, and you are not ashamed to ask questions." Even many great writers and the like will ask others for advice. If you ask the teacher questions, the teacher will only think that you are a studious student. So, as long as you are clear, it is not bad to ask the teacher questions. My academic performance is not bad, but I often ask questions that teachers don't understand. The teacher not only won't be unhappy, but also gives me careful advice! I believe you can do it too (* _ _ *). Also, you should pay attention to manners! Okay ... you can say, "I'm sorry. Teacher, I can't do this problem. Can you teach me? "