Ask children to recite a series of numbers dictated by adults in reverse order, such as 32 1 when dictation 123. When reciting numbers, you are not allowed to look at the written numbers or write down the dictated numbers with your own hair pen. This requires children to pay great attention to listening, recite the numbers immediately, and think hard at the same time, that is, recite the order of the numbers backwards through reverse thinking.

●2. Countdown the seconds

Countdown is the countdown from big to small, such as 5432 1. Children who have learned to count down with nursery rhymes can count down from 10 to 1 from the age of three and a half. Children's songs rhyme smoothly:123,321,1234567,7654321. It's easy to learn to recite 7- 1, 10, 9 and 8 first. The key to countdown is 10-9, such as key exercises 100-99, 90-89, 70-69 ... After practice, children can count down from the maximum number of times they remember to 1.

●3. About integration

Children learn to tell right from left because they take chopsticks early. Almost all children who can hold chopsticks know that the hand holding chopsticks is the right hand. Individual children in Zuo Li also know that they hold chopsticks with their left hand, so they have known that they use their right hand since 26 months. Parents often play games with their children in front of the mirror, and the children will quickly point to their left eye, right ear, left shoulder, right knee, right armpit and left elbow.