Method one, number axis method
It is very commonly used in foreign mathematics enlightenment education system. Just change a line with the arrow and mark the number from 1 to 10, and a simple and clear number axis will be done. Children can easily understand the relationship between sequence and size by observing the numbers before and after a certain number on the number axis, which is also a powerful point of modeling thinking. It helps children to make a smooth transition from concrete to abstract.
We can usually draw this number axis on the picture ourselves and let the children fill in the blanks. When children gradually master the number axis and can successfully fill in numbers in different positions on the number axis, they can start to try to draw the number axis to assist the addition and subtraction calculation. In this way, children can correspond specific perceptual axes with abstract numerical symbols one by one. Help them to transition to the abstract level in the early education of preschool mathematics.
Method 2, mathematical balance game method
Parents can try this artifact-mathematical balance toy when tutoring their children in addition and subtraction.
In an innovative form, this toy makes children learn mathematics by themselves with interest, interested in the weight and balance of numbers, makes the boring learning process lively and interesting, visualizes and gamifies abstract mathematics, guides children to achieve balance through trial and error, and exercises their hands and brains. The rules are simple, easy to use, and it is very playable to cultivate children's concentration.
Each number has a corresponding weight. Put the corresponding number of figures, so that the total on both sides is equal, and the small balance will be balanced. We can put the numbers directly, 5 and 3 are on the left, 8 is on the right, and 5+3=8. We can also be more interesting. Five little frogs and three little rabbits, how much is a * * *? The weight of five little frogs and three little rabbits is the same as the number 8, and 5+3=8.
Method 3: Divided learning method of numbers.
Calculation is based on the decomposition and combination of numbers. Only when children fully understand the division of numbers can they master the operation rules of numbers, add and subtract one by one, and understand the related operation methods of carry addition and borrow subtraction. Dividing ruler can easily help children learn to divide numbers. Addition is in front of the ruler, and subtraction is behind the ruler.
For example, 10 can be decomposed into 1 and 9 and converted into addition calculation. 1+9 =10,10-1= 9. We can also practice digital division and addition and subtraction with sticks, so that children can take out sticks of two colors respectively. For example, 5 can be divided into 1 and 4,1+4 = 5,5-1= 4, or 2 and 3,2+3 = 5,5-2 = 3.