Piaget Child Development Theory. Piaget stages of development are the foundation of a well known theory of early childhood development. He believed cognitive development the emergence of thinking and memory functions to be the key element of the whole process with language development for instance contingent upon the acquisition of knowledge and understanding via cognitive advances.
In piaget s view early cognitive development involves processes based upon actions and later progresses to changes in mental operations. Jean piaget was an early psychologist who specialized in child development from the 1920s onward. Piaget s theory is mainly known as a developmental stage theory.
Jean piaget s most notable professional work was his theory of cognitive development.
Piaget s stages of development are part of a theory about the phases of normal intellectual development from infancy through adulthood. Piaget s stage theory describes the cognitive development of children. The theory deals with the nature of knowledge itself and how humans gradually come to acquire construct and use it. The author of this theory was jean piaget a swiss psychologist known as the great pioneer of the constructivist theory of knowing.