I think the source that affects math achievement is not the right or wrong purpose of children, but how children think about math problems themselves and how to solve them. At the same time, will he give full play to his own thinking and learn to think and solve the same problem in many ways? More importantly, he enjoys doing the problem.

What parents need to do is how to guide him to form the above habits. You can start from the following aspects:

1, try to observe the topics he usually does, and select some topics (multi-method topics or typical topics) that he thinks are more valuable.

Give the selected topic to him, and do it again later. If it is a multi-method topic, encourage him to think more. I don't think it's necessary to say specifically how to encourage.

3. Do the questions twice and make a comparison. Let him sum up slowly before adding. Keep the wrong questions and classic questions.

If your child can form the habit of thinking independently about math problems, I think not only his grades will come up, but also many things in his later life will have the same thinking. Will benefit for life and will not be hurt by the college entrance examination.

I hope the above views are helpful to you.