Jean Piaget Cognitive Stages. The theory was the work of a man named jean piaget a swiss psychologist who became the first to conduct systematic research on the cognitive development of children. Piaget is arguably most well known for his theory of cognitive development.
9 august 1896 16 september 1980 was a swiss psychologist known for his work on child development. Piaget developed his theories by watching children and making notes about their progress. His theory focuses not only on understanding how children acquire knowledge but also on understanding the nature of intelligence.
His contributions include a stage theory of child cognitive development detailed observational studies of cognition in children and a series of simple but ingenious tests to reveal different cognitive abilities.
What made piaget s stages so unique and revolutionary. Piaget s stages are. The most well known theory developed by jean piaget is his theory of cognitive development. Toddlerhood 18 24 months through early childhood age 7.