Hippo model is a kind of theoretical model which has been widely used in psychology, education and organization management in recent years. It takes the hippopotamus in biology as a symbol to describe and analyze human behavior and the psychological mechanism behind it. In this model, the hippo is seen as a large, potentially inertial force that represents deep human emotions, motivations, and habits.

In the hippo model, the external behavior is often influenced by the internal "big hippo." This "big hippo" refers not only to an individual's emotions and motivations, but also to a variety of factors such as social environment, cultural background and past experiences. Because of the existence of these potential factors, individuals may behave contrary to their logical judgment when facing decisions. This explains many of the "irrational" behaviors that are common in economic and psychological research.

According to the Hippo model, changing a person's behavior often starts with changing their intrinsic motivations and emotions. This perspective has inspired educators and managers to pay more attention to the inner world of individuals when conducting psychological interventions and behavior changes. For example, in the field of education, teachers can enhance students' motivation and effectiveness by understanding their emotional needs and providing more suitable learning environments and supports. In organizational management, the leader can use the hippo model to analyze the motivation of employees and create a positive working atmosphere, thus improving the overall performance of the team.