1 Listen carefully. Do it! What the teacher is talking about here is a summary, which is much more worry-free than reading it yourself, so you can take notes appropriately if necessary. (Write it down completely, it's not called taking notes,) Focus on taking notes.

Review the course and think carefully about the conditions and scope of the concepts and definitions in the book, even if you remember them!

When reading notes and asking questions, you'd better ask the teacher. It's not that I don't trust my classmates. Sometimes their understanding is very one-sided and misleading. Remember, asking questions is not a shameful thing. In fact, the teacher appreciates the students who ask questions.

Familiar with the concept definition, some problem-solving ideas and skills, and carefully examine the questions. It is also very powerful to do fewer questions well. If you can't do it, do more questions, but if you think about it, you'd better think about it. Now is not the time to practice speed. (Unless you do a simulation, you need to be quick and accurate.) After thinking, you can gradually accumulate into your own things.

As mentioned above, caution is the key. Mathematics is a subject that needs patience. Don't be discouraged. From now on, don't be greedy bit by bit. Don't think about eating a fat man at once, review well and arrange your time reasonably. You will always learn well.