Jean Piaget Cognitive Development. Piaget believed that development depended primarily on cognitive function. According to jean piaget not everyone reaches optimal cognitive and moral development.
Piaget s theory is mainly known as a developmental stage theory. Piaget is arguably most well known for his theory of cognitive development. He disagreed with the idea that intelligence was a fixed trait and regarded cognitive development as a process which occurs due to biological maturation and interaction with the environment.
Jean piaget was a psychologist who focused on child development.
Toddlerhood 18 24 months through early childhood age 7. Piaget is arguably most well known for his theory of cognitive development. Piaget believed that development depended primarily on cognitive function. Other theories of his time placed importance on environment or biology.