Extension, that is, the target range of education: education in a broad sense and education in a narrow sense; Formal education and informal education; School, family and social education.
Education in a broad sense is defined as: education is a unique social phenomenon in human society and a social activity to cultivate people.
In a narrow sense, education is defined as: education is an activity in which educators impart knowledge and skills to the educated in a purposeful, planned and organized way according to certain social requirements and the laws of the physical and mental development of the younger generation, cultivate ideological and moral character, and develop intelligence and physical strength, and through this activity, educate the educated to become social service providers.