He wears a pair of reading glasses. He is not tall, but he is very knowledgeable. I talked with relish in class. I still clearly remember that I miscalculated a question with the same answer at the same time. He called us to the office and said, "Which one of you copied from whom?" We all shook our heads. He went on to say, "You two go down and think about it." We just walked over and squatted down silently, like this. ...

After a while, he called us both over again and said, "Have you thought about it? Who copied who? " We continue to shake our heads. Then his humorous sentence made me almost laugh: "You two, one asshole plus one asshole equals the square of two assholes, and one asshole equals two assholes." I am in the same place as me, and I am always talking. We went back to the classroom to discuss what had just happened. I did the right calculation and copied it wrong, but he did the wrong calculation. hey ...

After class, the old math man came. He said that two bastards pissed me off today, and we bowed our heads and dared not say anything. This class is praising the test paper. Everyone's heart is pounding except me, because we all know our scores. I don't know what kind of shock this is, but the source of Cao Chen, the first in our class, is really embarrassing. The old math man said he was an asshole, and I didn't exaggerate at all. He only got more than 20 points in the exam.

Everyone laughed at him after class. It was really touching. The old math man is really humorous. He's joking. He goes to class. He treats his work meticulously and lectures carefully. Teaching for 29 years, the highest grade teacher. I am honored to be his student. After this composition, I summed up a formula.