The addition and subtraction of Math 20 in children's large classes can be learned by drawing: some small animals or fruits that children like and are interested in can be drawn in advance. It helps to increase children's interest, attract children's attention and stimulate children's enthusiasm for learning.

Prepare some colorful pictures: prepare some beautiful pictures that children are interested in in in advance, which can be pictures of people, things, fruits, clothes and household appliances. Playing with children helps to cultivate and improve their interest in learning.

Educational method

Drawing sticks: Draw some sticks that children are interested in on paper with a pen in advance to make them look clear. This makes it easier for children to understand.

Make full use of children's fingers to learn: let children count with their own fingers in the process of learning, especially in the process of calculating mathematics. For example, you need to calculate the number of 9+8, so that children can remember 9 in their minds, and then reach out and count eight fingers to get the correct answer.

Practice using the carry method: let the children do the calculations. Learn how to convert 10 into 1 for learning. In other words, it is the way to get 10.

The above methods need to be step by step in the application process. Under normal circumstances, children will not learn immediately. Therefore, be patient enough and don't hurt your child's self-confidence. Encourage and support children more. Otherwise, children are more prone to a series of situations such as being tired of learning.