First, communicate clearly with children and understand the reasons for poor grades.
As a junior high school student, I believe that children will also know the reasons for poor grades. Therefore, parents can't just be anxious, which can't solve any problems at all. They should try to communicate with their children, know from them why they get such unsatisfactory results, and then try to solve the problem.
Second, if the child's grades are not good just because he doesn't work hard, he can sign up for a remedial class.
Many times, children's poor grades are because they are unwilling to listen to the teacher in class and are unwilling to review and consolidate the knowledge points after class, which eventually leads to unsatisfactory grades. Therefore, after communicating with their children, parents can report their children to the remedial classes, tell the teachers about their problems, or let the children communicate with the teachers, so that the teachers in the remedial classes can check and fill the gaps for their children's problems and make up lessons for them appropriately.
Third, cultivate children's thinking ability.
Learning mathematics, children's thinking ability is very important. Sometimes, some children seem to study math very hard, but their grades are always unsatisfactory. That's because they are just studying hard, not using knowledge flexibly, and not really thinking with their brains. As a result, when they did the problem, their knowledge simply stopped there, but they didn't know how to write it. Therefore, parents can buy some books for their children to broaden their brains, and at the same time, they can also let their children develop some flexible hobbies, thus cultivating their thinking ability. In this way, if you are still studying math, you can become more knowledgeable and your parents can be less anxious.