Piaget S Theory Formal Operational Stage. Piaget was the first psychologist to make a systematic study of children s cognitive development. One of piaget s fundamental assumptions is that early intellectual growth arises primarily out of the child s interactions with objects in the environment.
The first of these the sensorimotor stage extends from birth to the acquisition of language in this stage infants progressively construct knowledge and understanding of the world by. And 4 the stage of formal operations that characterizes the adolescent and the adult. The concrete operational stage from age 7 to 11 and.
The sensorimotor stage from birth to age 2.
Piaget s stages of cognitive development in m. Piaget describes stages of cognitive development 1923 1952. For example piaget believed that a two year old. Piaget s theory included four distinct stages of development.