(2) Put forward the idea of "educational psychology" for the first time. The meaning of "educational psychology": first, as far as the meaning of educational purpose or result is concerned, education and teaching are required to cultivate and develop people's inherent and inherent abilities; Second, as far as the significance of educational and teaching activities or processes is concerned, it is required that education and teaching should be coordinated with the characteristics and laws of children's psychological development, so that children can be in a natural and active position in acquiring knowledge, developing intelligence and moral feelings.

(3) Advocating emotional education and love education.

(4) The first educator in the history of western education who put the idea of "combining education with productive labor" into practice.