Children have "individual differences," the development of different, Even children of the same age will not show the same ability. Even children may have different development speeds in various aspects, such as the rapid development of physical movement of children, not necessarily in the language expression of faster development. Infanthood is a critical period for all aspects of development, missing the key period of parenting, may affect the child's life. Therefore, teachers should give the best environment for children, design the most suitable activities, so that children have the best development, the best performance.