The first kindergarten in the world was established, and a relatively perfect kindergarten education system was put forward and developed. Based on his scientific understanding of the law of children's physical and mental development, he pointed out that games have an internal mechanism to promote children's physical and mental development, that is, games are the characteristics of children's activities. Through various games, children's inner activities and inner life become independent, independent and external self-expression, thus gaining happiness, freedom and satisfaction and maintaining internal and external balance. The importance of games lies in: "Children's self-activities and games not only form the bud of his whole future life, but also form the core of his whole future life.

In the systematic study of the combination of game theory and kindergarten education practice, Froebel is a groundbreaking milestone.