(1) Due to natural and sexual selection, human beings have formed a motive tendency to control living resources and ensure the reproduction of future generations. The past is the key to understanding the psychological mechanism.

(2) The knowledge related to this motivation tendency is called folk knowledge, including naive psychology, naive biology and naive physics, especially reasoning and attribution preference, and the psychological mechanism is modular.

(3) In addition to simple knowledge, there is also academic knowledge, which is obtained on the basis of simple knowledge, and there is a certain gap between them.

(4) People's educational behavior is the result of the interaction between psychological mechanism and environment.