Childhood is the critical period for children’s intellectual development. Many parents believe that their children should learn to read, repeat poems, can add and subtract as much as possible, and even spend a lot of time and money in sending their children to learn the piano, fine arts, foreign language, which, in their opinion, can open their kids’ intelligence. In fact, this is a kind of misunderstanding for intelligence. Intelligence includes not only characteristics of cognitive reaction, but also ability to deal with the problem effectively and adapt to the new environment quickly and successfully. There are many approaches to children's intellectual development, and one of the most effective ways is to make children participate in sports activities purposefully.

1 Exercise can stimulate the cerebral cortex

Development of children's sports and motor ability can directly reflect the child's intellectual development. We often find that children with mental retardation are often slow, whose motor skills fall behind the average child. In other words, motor development is one of the early manifestations of intellectual development. This is because the movement of people is governed by the cerebral cortex. In various parts of the human body has a corresponding movement of the central cortex, children strengthening exercise can stimulate the corresponding cerebral cortex, making it more active, more precisely control the development of guiding movement and action. Therefore, development and brain development is closely related to the movement of parts and time. In addition, exercise can accelerate myelination of nerve fibers, which is a sign of maturity of the nervous system, enables faster nerve conduction velocity.

　　
2 Playful children more creative

　　
Costa Rica pedagogy and child psychologist Gabriela Madriz wasthe points out in the "national newspaper", sports and the best "tool" for children to learn to observe, recognize, understand, talk and activities, which promote children's intellectual development of the brain. He pointed out that science proved that for 2-5 year children, brain of the children who love to play is 30% bigger than the brain of children who do not play. The reason is that in the process of sports and play, children should complete dozens of actions children related to brain and thinking activities, such as mastering balance, coordinating psychology and treating issues. Through play and exercise,  children can not only improve their ability to recognize objects, the ability of language performance and creative imagination, but eliminate the psychological stress and fear and so on. Therefore, adults should not neglect development and training to the children’s sports and action capacity, try to create a suitable environment for children, encourage children to exercise, thus contributing to its intellectual and psychological development.

　　
3 Exercise should be mainly fun games.

Children movement’s patterns are various, which should be mainly fun games, emphasizing activitiey’s interest. In the course of the game, kids should master walking, running, jumping, swimming, rolling, throwing and other basic skills. To characteristics of physical development for children, parents can let children participate in skipping, rubber band skipping, shooting a small ball, kicking a small football, playing a small basketball, swimming and other sports. As children muscles, ligaments, bone and connective tissue, are not mature, therefore, it is premature to have weight-bearing muscle strength training. In addition, the human brain and nervous system are completely mature in adolescence. After this period, the effect of promoting intellectual through movement is not obvious.