Bruner believes that learning includes three basic processes: acquisition, transformation and evaluation of new knowledge. Learning activities are first to acquire new knowledge. Bruner believes that new knowledge may be the refinement of previous knowledge, or it may be the opposite of the original knowledge.

For example, when talking about circulatory system, students may have a vague understanding of blood circulation; When talking about Newton's laws of motion, the new knowledge will go against the students' existing perceptual knowledge. But no matter how the relationship between the old and new knowledge is, the existing knowledge will be further improved.

Bruner's Historical Contribution: Bruner is famous for his outstanding contribution to education. He declared: "Any subject can effectively teach any child at any stage of development in an appropriate form of knowledge." This caused a curriculum reform movement in the United States.

Bruner attaches great importance to the great role of education in children's psychological development. He believes that children should learn the basic structure of subject knowledge; Education should promote the development of children's cognitive ability; Attach importance to children's early education; "Discovery" is the main learning method for children.