On the basis of summarizing predecessors' educational experience and his own educational practice, Zhu divided a person's education into two stages: "primary school" and "university", and put forward their different educational tasks, contents and methods.

Zhu believes that 8~ 15 years old is the primary education stage, and its task is to cultivate "sages and sages". In view of the "lack of knowledge" and weak thinking ability of primary school children, he proposed that the content of primary school education should be "learning things", and advocated that children should know basic ethical norms, develop certain behavior habits and learn preliminary cultural knowledge and skills through concrete actions in daily life.

In terms of educational methods:

Zhu emphasized preconceived ideas and early teaching; Try to be vivid and vivid, which can stimulate interest; Cultivate children's moral behavior habits in the form of "instructions" and "learning rules". Zhu believes that the task of university education after 15 years old is to "add luster" on the basis of "raw materials" and cultivate talents needed by the country.

Zhu believes that, unlike primary education, which focuses on "teaching", the content of university education focuses on "teaching theory", that is, it focuses on exploring "why things are so". In terms of university education methods, Zhu attached importance to self-study and advocated the exchange of different academic views. Zhu's thoughts on primary education and university education added new contents to China's ancient educational thoughts.