We should grasp the main contradictions and problems in the lecture, think synchronously with the teacher's explanation when attending the lecture, and take notes when necessary. Every time after class, we should think deeply and summarize, so as to achieve one lesson at a time. Reading: When reading, you should carefully scrutinize and understand every concept, theorem and law, and learn with examples from similar reference books, learn from others, increase your knowledge and develop your thinking. Inquiry: Learn to think. After the problem is solved, we should explore some new methods, learn to think about the problem from different angles, and even change the conditions or conclusions to find new problems. After a period of study, we should sort out our own ideas and form our own thinking rules. Homework: review your homework first, think before you start writing, understand a lot of similar problems, work hard and standardize your writing. Only in this way can we learn math well. In the process of learning mathematics, we should realize the importance of mathematics, give full play to our subjective initiative, pay attention to small details, develop good mathematics learning habits, and then cultivate the ability to think, analyze and solve problems, and finally learn mathematics well.

Chemistry: