I bought a "Two-color Notes" in the second day of junior high school and published it in Longmen Bookstore. It is pleasing to the eye, the topic is relatively basic, and the number of questions is small and precise, which is helpful to students with medium foundation and has no burden.

Many reference books are used in senior high school, such as Guidance, Volume II of Middle School, Going to North China University, Optimal Design and so on. I think there are also these reference books in junior high school, and their characteristics should be similar. I want to bring them up for your reference.

Personally, I think that "Cuddling" and "Going to Tsinghua Peking University" are suitable for top students who have a good foundation and study hard, because the font is small, the topic is big and difficult.

"The Second Book of Middle School" and "Optimal Design" pay more attention to the foundation, and both have an outline summary. The former is more theoretical, while the latter is more basic but typical. A 16-page book is always more convenient to use because it is easier to see at a glance.

I have forgotten the names of many reference books. These books are more profound because they are always bought in sets. And 3. 1 test that set of books is also better. Although it has been published for many years, it is very classic.

In mathematics, some special reference books are also very helpful. Junior high school mathematics is still very easy. It is not recommended to do many questions. Just buy a book to do it. Don't buy too much.