1. Check for leaks and fill gaps, check the foundation and fill knowledge points. In order to find out the loopholes in their knowledge, students can clearly see the loopholes in their knowledge points and topics through the wrong questions in the exam and the wrong questions in their usual exercises. After finding the loophole, how should I make up for it?

The correct way is to return to textbooks. Students should return to textbooks, start with textbooks, do problems around textbooks, and check for missing items. Don't underestimate the loopholes and weaknesses in knowledge. The omission of small knowledge points may not cause big problems for the time being, but it will cause knowledge blind spots over time. In the face of comprehensive questions, we will find that the lack of one point will lead to the incompleteness of the whole knowledge system and seriously affect the improvement of the overall performance. If you don't check the leaks and fill the gaps in time, you will inevitably encounter bottlenecks when learning new knowledge, and you don't know where the crux lies.