I think you should teach your children to count first. What do you mean? It is to teach children to count in kind and let them remember what numbers represent, which is conducive to the next teaching.

Then teach children subtraction and addition in kind. Just use a stick or 10 apples to teach children to remove one or add one, and there will be several or more left. The best education comes from life. Children are often asked in life, such as how many chairs are there on the dining table, and mom and dad took one. How many chairs are left to make? This kind of questioning can not only teach children to add and subtract, but also exercise their thinking of doing questions and answering questions in the future.

Just like the course of spark thinking, it is entertaining and entertaining, and the abstract and visual expression of mathematics will be easier for children to understand, and the course will be interesting and fun, which will stimulate children's interest in learning!

Finally, when children learn the addition and subtraction in life, teach them to write addition and subtraction on paper.

The above is my opinion, I hope I can help you.