2. Educating people is the basic element and the main body of educational practice. He takes the educated as the object of "teaching", the influence of education as the means, and the purpose of his activities is to guide and promote the physical and mental development of the educated, striving to make the physical and mental changes of his "teaching" objects conform to his own social changes. Therefore, educators, as human factors in educational activities, are the subject of educational practice, or "teaching".