Mathematics is a discipline that pays great attention to methods, so where do methods come from? First, give lectures through teachers; Second, read the counseling book by yourself; Third, summarize yourself by doing the questions. For your child, I think the most effective way at present is to buy a good math tutorial book for your child, just one, but this book must be explained in detail, and there are many solutions to a problem.
Does mastering the method mean that the grades will inevitably improve? Don't! Only by putting your own problems into practice can you really solve them. In other words, it is a step-by-step process to do more exercises, find out the problems in doing exercises, then correct them and gradually improve yourself. In teaching practice, no child can learn math well without doing problems. Often he thinks he can do it, but he is wrong and careless when he does it! These are lazy hands and low eyes. Therefore, be sure to do more questions to ensure that you will do well!
Finally, there is a problem, that is, children's interest in learning. I mentioned many times in my lectures that children's interests and children's grades are integrated. Give your child more encouragement, let him find confidence and feel that he can learn math well, and then he will study hard!