The teacher of Shan Zhi Education suggested that you should be more patient with the parents of the first-grade primary school students. You can communicate with school teachers and ask them to supervise children to use some good learning methods. It is best not to enroll in remedial classes, which will bring some pressure to children.
Have a sense of mathematical thinking before doing the problem. Don't fall into conventional problem-solving thinking at once, but use certain mathematical thinking to solve this problem. After solving or reading the example solution of a problem, you should make clear what method and mathematical thought are used, and immediately find a similar problem to consolidate and practice.
I believe these suggestions will be helpful to your children, and I hope that the more you learn, the better.