1920, the association for progressive education issued a "seven-point statement of principles": "① students have the freedom to develop naturally. (2) Interest is the driving force of all activities. (3) The teacher is a tutor rather than a supervisor of homework. (4) Scientific research on students' development. (5) Pay great attention to children's physical development. (6) To meet the needs of children's life and strengthen the cooperation between schools and families. (7) In the educational movement, progressives are the leaders. "