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. In education, children's cognitive ability should be fully considered, and children should be educated with corresponding content when they reach a certain stage of development.
3. Education should also take care of the particularity 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. For example, 1~2 years old and adolescence are the periods of children's rapid development, and the speed of children's physical and mental development is much higher than other periods. Education should not only teach children according to the general law of development, but also take care of special children and the particularity of different stages of their development, so as to teach them in accordance with their aptitude.