Study hard and get early. According to the information about junior high school mathematics, we know that junior high school mathematics has top-notch special training and early attendance. The series "Reading early and studying hard to cultivate top students" is a very good teaching aid for junior middle schools, which is relatively suitable for students who have a good mathematical foundation and want to improve their grades and break through themselves. It is very systematic, and it is difficult to study hard, but the topics are very detailed and rich, which are well connected with school textbooks and are more acceptable to students.