I think junior high school mathematics is still quite critical. As one of the three major subjects, math scores are not good and too serious. The level of mathematics I teach is getting higher and higher. They have Jiege deciphering mathematics in the middle school entrance examination. When I first came here to study, some of them couldn't keep up with the rhythm. At first, I was not sure. Later, I followed the teacher's arrangement and was willing to ask questions on my own initiative. Slowly, my grades began to improve. I just passed math before, and now my math scores are among the top in our class. Some students specifically asked me what class I enrolled in, and now several students want to study in higher education.