The learning method of "Mathematics Textbook for Competition in Senior Four Schools": each volume has 10 questions (note: except for the second volume of the sixth grade), 6 examples and 4 exercises. Among them, the knowledge points of the first four examples correspond to the four exercises one by one, and the difficulty of the last two examples is slightly improved.

When studying this course, students are advised to understand the knowledge points and problem-solving methods of the first four examples, and then do four exercises independently, and then compare them with the examples to see if their problem-solving methods and ideas are the same.

The last two examples suggest that students think independently first, and it is of course best to work out. If you can't, look at the explanation and learn how these problem-solving methods are applied to difficult topics.

1, the topic of "interest", you can solve the problem quite well when you see the topic, and after each topic is finished, only a few calculation errors appear. Then, the answer to this lecture shows that you have basically mastered it.

2, "expansion" problem, can independently complete about half of the "expansion" problem, but there are a few calculation errors, the other half of the problem, you can know the problem-solving project by looking at the solution. So, basically, you are already a good problem solver in this class. ?