Alas, it's math self-study again. My life seems to be a few years short. The classroom is full of noise, all because math is taught by myself early. Some students pretend to go outside to go to the toilet in order to save reading. At this moment, the classroom suddenly became quiet. Oh, it turns out that Miss Yuan has arrived. No wonder the classroom suddenly became so quiet. Once, because there were two Chinese classes in the afternoon, Mr. Mao had something to go out, so he had to let Mr. Yuan take the place. Who let her be our deputy head teacher? I have to resign myself to fate. Hey, how boring! Teacher Yuan has three classes in the afternoon. There must be a lot of homework waiting for us. One of them is the "basic training" of previewing homework at night, and we all guessed it right. This burst of sound spread throughout the classroom. Hey! What's going on here? Suddenly, the classroom was quiet again, just like a mouse saw a cat. There was no noise and noise in the classroom just now. Oh, Miss Yuan, wait for us to calm down early before class. We watched Mr. Yuan holding "Opening School", "Classroom" and papers. Seeing so much homework in Mr. Yuan's hand, we are finished. In the afternoon, Mr. Yuan was serious. We have been entrusted with so many tasks. After a while, Mr. Yuan reported a classmate's name and asked him to go up and correct his homework. So-and-so, then my heart pounded like something. Maybe there were too many people who didn't modify it. Seeing that so many things have not been corrected, Teacher Yuan said angrily, "Whoever doesn't correct these three kinds of homework today is not allowed to go home. The test paper is in your own hands, otherwise the graders are not allowed to leave. It is from Mary Zhao, so you can go home. Today's test paper is your passport. " Oh, shit! Miss Yuan won't take the wrong medicine today, will she? She's so angry. Every corner of the classroom is full of the feeling of fire, and no one dares to make any noise. Otherwise, the baby will be detained, and we are all scared. No one wants this to happen to themselves. Mr. Yuan is sometimes very weak. On one occasion, Mr. Yuan met with difficulties in life and was sad for many days. It takes a lot of time for several female students in our class to unite to go to Miss Yuan's dormitory to comfort her. In math class, Mr. Yuan said that the boys below were all talking empty talk. Teacher Yuan warned them again and again before speaking. If some students don't know how to do this problem, Mr. Yuan will teach them patiently until they can do it. In class, it said that she would ask the class many times: "Do you understand?" Until the whole class understands, then continue. Ah! This is our math teacher. She puts all her energy into math, which makes us admire her.