1, different children have different reasons for poor grades. Some students have poor computing ability, some students have poor reading and examination ability, some students have poor understanding ability, some students are unfamiliar with formulas and theorems, some students have low efficiency in class, some students know that basic knowledge cannot be comprehensively applied, some students don't like teachers, and some students are afraid of difficulties. Parents are advised to communicate with school teachers first to find out the reasons.

2, holding the children's papers and homework, let the teacher analyze, what are the reasons for poor grades, and what types of questions are easy for children to lose points, and find the reasons before they can cure the disease. After finding out the problem, carry out targeted intensive training, and find a workbook to practice your own shortcomings.

3. Formula theorems in textbooks are generally marked in blue, which requires children to master and use skillfully, and exercises after class must also be mastered.