First of all, teach children to know numbers. We can learn numbers by teaching Arabic numeral songs, so that children are interested in numbers. Then we can teach children positive numbers and reciprocal numbers, so that children can have an understanding of numbers and quantities.

2. Equal pairing of numbers and things

Play a counting game by counting things. Let the children count a few things to tell us how many there are. In this interesting way, children's interest and enthusiasm can be cultivated. In this way, it can be judged whether children can learn, and the corresponding relationship between numbers and terms is to prepare for the next step of teaching addition and subtraction.

3, finger practice addition and subtraction

Teach children to add and subtract with hand index less than ten. One finger represents a number, but counting fingers only applies to the addition formula where one of the two numbers is singular, because if both numbers are even, then fingers are not enough.

4. Master the relationship between two adjacent numbers.

On the basis of knowing numbers, we can compare them by teaching children the size of numbers, so that children can master the relationship between numbers skillfully. Children learn to read questions, let them know the meaning of "+"and "-",and tell them to count down when they see "plus". When you read the "minus sign", you count forward. This paves the way for addition and subtraction.