Write down the original questions and wrong steps in black notes, then mark the wrong places with red pens and write down the correct steps with red notes. Next, analyze the cause of the error and make a summary.

Make a mistake book and prepare a marker. 1. The wrong questions in the data book can be marked directly with a marker, and made in the corresponding position. Draw a table in the blank space at the back of the book, and write down the types of wrong questions and the pages of the questions in the table, so as to facilitate future review! There are many papers in high school, and the mistakes in the papers should be recorded in the notebook. In view of the difficulty in copying the topic, you can cut it with scissors and paste it in your notebook, and write: 1) the knowledge points you have tested under the topic. 2) The reason for the error (write it with a marker! (3) correct (the standardized solution to this problem, it would be better if you could come up with several methods. I have a great sense of accomplishment when I make a mistake, and finally I can come up with several methods-the key steps in solving the problem, or the wrong steps at that time, must be written with a marker! Note: the purpose of the wrong question book is to find out the mistakes. You deepened your memory when you did it. However, because people have a forgetting curve, what they remember will be forgotten or unfamiliar after a period of time, so they must read the wrong question book regularly. When reading, we should also focus on the reasons and key steps of doing something wrong. It only takes ten minutes at a time, but it is efficient. Repeat it three or five times and you will forget everything you want. I wish you progress in your study!

I feel like it's useless. The key is to understand.