It depends on whether their books are suitable for you or not, and what kind of counseling materials you need. What I bought for my children is the instruction manual of Rongdeji Company, which contains the in-class examination questions and the latest in-class examination trends over the years, so that students can review according to the basics, prepare for the exam with emphasis, and do not miss the test sites. The child is not good at math. Through this textbook, her confidence in learning mathematics has increased a lot, and her grades are slowly rising. I am also very happy to see that my children are more confident.