1. Understanding the topic: First of all, you need to make sure that you fully understand the requirements of the topic. If you don't understand anything, just look up the textbook or ask the teacher for advice.
2. Finish it independently: Try to finish the example by yourself, and don't rely on the answer or the help of classmates. This can test whether you really have relevant knowledge.
3. Check the answer: After completing the example, check whether your answer is correct. If your answer is wrong, you should find out the reason for the mistake and answer it again.
4. Analyze the problem-solving process: You should analyze your problem-solving process to see if there is a more concise and effective method. This can help you improve your problem-solving ability.
5. Repeated practice: For some difficult examples, practice repeatedly until you can skillfully solve them.
6. Summarize the rules: By answering a large number of examples, you can summarize some rules and methods of solving problems, which is very helpful for you to answer questions quickly in the exam.
7. Innovative thinking: In the process of solving problems, you can try to answer in different ways and cultivate your innovative thinking ability.
Generally speaking, after-class examples in high school mathematics textbooks are important resources for you to learn mathematics, and you should make full use of them to improve your mathematics ability.