Mathematics and physics are related. Physics and chemistry need mathematical skills to pave the way, but only the basic skills and very little knowledge in mathematics are used. I believe your child should be good at math before the third grade.

1 Interest and subject characteristics:

Junior high school mathematics, especially the third grade, knowledge is abstracted, and students' junior high school mathematics emotion and life are derailed and have no interest. It may be related to the teacher's teaching methods and guidance, or it may be related to his own mentality and interest. Cultivate more interests, think more about the role of mathematical models, and link mathematics with practice.

In physics and chemistry, knowledge is closer to life, there are many experiments, and there are many unexpected and interesting knowledge, which students are particularly interested in.

2 characteristics of energy and discipline:

Physics needs students' thinking ability. Students don't need too much calculation and practice, as long as they understand the principle, they can do any problem.

Mathematics requires students to have basic computing and thinking abilities. Students are required to have strong computing ability, do more exercises to strengthen, get good grades, be careful and careless.

I suggest that your children spend more time on math. I had a similar situation in junior high school and high school, but even if I make up for it. Now that I have become an excellent teacher, there is no shortcut to math learning. I suggest that I basically make up for it and make up for what is missing. Only when it is completed can it be effective.

It is best to choose a tutorial book that is synchronized with the textbook. There are exercises with answers and explanations. This is what I use to cultivate my self-study ability. Wish you success!