If it's a little difficult, it's 100, if the foundation is good, it's moderately difficult, if it's difficult, it's a good book, top students, top students, with examples and answers, topics, groups, basic topics, mid-term topics, Olympic math and so on. These three books were all bought by our teacher.

Skills:

Active preview before class

First of all, the knowledge learned in a math class in junior high school is much more than that in primary school. Moreover, many primary school math classes can be mastered by students themselves, but junior high school math is completely different, with many knowledge contents and complex knowledge points, which requires students to learn to preview actively.

Draw pictures of what you have mastered and have doubts, so that you can study in a targeted way, preview in advance, and help yourself to keep up with the rhythm of the teacher's lecture quickly. Secondly, what you don't understand in the preview can help you understand and analyze the teacher's ideas and methods in class, make the class efficient and prepare for the math class. Therefore, preview is one of the important pre-class preparations for learning junior high school mathematics.