Because students are new to high school mathematics. What I just started to learn may be some simple operations, and the content involved is also closely related to junior high school knowledge. However, with the improvement of the difficulty of knowledge, many students will be sleepy when the teacher lectures, not because they don't want to listen well, but because they don't understand, they will feel inferior more and more, and they will have no passion in class, so it is easy to desert. There are more and more homework left, and the exam will definitely be more painful. The lower the score, the greater the stress.
The students are experienced, so they know how to do this problem. Some students are really masters, and they can score 140 in the college entrance examination, which many ordinary students dare not imagine. After three years of high school training, students have been able to skillfully use some knowledge points and read many questions, so they are more thoughtful when doing questions. As long as you learn how to do the problem, there will be an answer when you do it. Good students do well, but students with poor math scores can't even reach the passing line.
I haven't seen you for three days, so I should be impressed. Students study in school for three years, 1000 days and nights, and spend more time on their studies every day. Getting good grades in the exam is also a reward for them for three years.