Belong to. Chen Heqin is a famous family education expert and psychologist in China. He put forward many methods of family education, including "four-step education method", "three-step training method" and "situational education method", including "teaching by reason". The teaching method of true theory means to achieve the purpose of education by explaining the truth and reasons of things, so that children can understand the reasons and significance of doing things, thus cultivating their cognitive and self-restraint abilities.