If children are 0-2 years old, firstly, we can focus on their bodies and tell them that they have two eyes, two ears, a nose, a mouth, two hands, two feet and so on. On the one hand, they can learn more about their bodies, on the other hand, they can also get access to numbers. Second, take the fruits, building blocks and toys at home and tell them that this is an apple, two bananas, three building blocks, four peanuts and so on. They may not understand at first, when you tell him that for a long time. Try to ask him to help you with a pear or two pears, so that you can judge whether he understands the concept. Then do more exercises, and the children will definitely give you many surprises. Third, when going up and down the stairs, take him to count the steps, 1, 2, 3, 4...20, so that he can understand the connection between numbers and specific things. If you only teach your child to count vaguely, even if he can count to 50 100, he still doesn't understand the purpose of these numbers. It is easy for them to understand the figures after they are connected with real life. The key is to understand the meaning of numbers, not to be able to count several numbers.

If the children are 3-4 years old, and the children in this period have a clear understanding of numbers, then we can start simple addition. For example, put an apple on the table, ask the child how many apples are there on the table, and then put an apple on it from behind. How many apples are there now? The child must know that there are two, so you need to tell the child that one apple plus one apple equals two apples at this time. Switch to a pear and tell him that one pear plus one pear equals two pears (don't think this is redundant, many children can understand that one apple plus one apple equals two apples, but they can't understand 1+ 1=2). If they can understand, then they can tell him 1+ 1=2. Then do more exercises, but remember, in this process, if the child makes a mistake, don't criticize, but encourage and guide the child. If it still doesn't work, you should give up this exercise immediately, indicating that the child's understanding has not reached this point, and wait patiently for the next suitable opportunity. Because the basis of doing these exercises should be to follow the individual development of children. You can't get angry and get quick success just because other children already know and your own children don't know. When you have a deep understanding of addition, you can do subtraction exercises, such as taking one of three apples. Moreover, children in this period like to count by hand very much, so let them count with confidence. Only after going through this stage will they know that they can do it without fingers and can do it faster.

Children aged 5-6 should pay attention to the diversity of thinking problems. For example, for the same topic, I will tell him a few algorithms that I can think of, and slowly the child can come up with several methods according to the ideas you provide. For example, if you want to count 6+7 (of course, the premise is that you have a good understanding of addition and subtraction within 10), I will tell my children that they can snap their fingers one by one; You can also think about whether you can add it up first 10. If you add 6 and 4, how much more? ; Or can we consider 7 plus 3 first? So I will tell my children that 6+7 and 7+6 mean the same thing. Of course, you can also consider other methods, as long as it is reasonable, you can expand it.

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