1. Education should follow the stage of children's physical and mental development. For example, Piaget's theory of stages of cognitive development points out that children have different physical and mental characteristics at different ages, and education should follow the physical and mental characteristics of children at different stages of development. In terms of educational content, we should appropriately adjust the educational methods according to children's physical and mental characteristics.

2. Education should follow the order of children's physical and mental development. Generally speaking, children's development is carried out in a certain order, and education should follow the nature of children's development so as not to be "rash".

3. Education should also take care of the imbalance of children's physical and mental development. The development of different children has its particularity on the basis of overall consistency, and the same child also has different development characteristics at different stages of development.

Children's education involves the following theoretical issues:

First, the effects of heredity, environment and education on children's psychological development. It is not congenital inheritance that plays a decisive role in children's psychological development. Heredity only provides a natural premise for children's psychological development, but it cannot determine children's psychological development. Environment and education play a decisive role in children's psychological development, while education plays a leading role.

Second, the motivation or internal contradiction of children's psychological development. The driving force or fundamental reason for the development of all things lies not in the outside of things, but in the inside of things, that is, the contradictions that exist inside things. The same is true of children's psychological development.

Third, the relationship between education and children's psychological development. Environment and education play a decisive role in children's psychological development, but they do not mechanically determine children's psychological development. It must be realized through the internal reasons of children's psychology.

Fourth, the relationship between children's psychological development and development stages. On the one hand, children's psychology is constantly developing, but at the same time there are stages. It is wrong to see only one side of sustainable development or only one side of development stage.