Joan Piaget was the man who helped a lot to the world of psychology and sociology. One of the most important things that he made was to create the fact that the cognitive processes of kids are not only undeveloped versions of that of an adult, but that they have their own system.
Piaget derive that there are four different stages in the child cognitive development of children. These four stages are: 1-Sensory Motor Stage that occurs in kids from births to two years old. 2-Preoperational that occurs in kids from two to seven years old. 3- Concrete Operational that occurs in kids from seven to eleven years old. 4- Formal Operational that occurs from the age eleven and more.
The first stage is Sensorimotor stage which occurs in kids from birth
Piaget derive that there are four different stages in the child cognitive development of children. These four stages are: 1-Sensory Motor Stage that occurs in kids from births to two years old. 2-Preoperational that occurs in kids from two to seven years old. 3- Concrete Operational that occurs in kids from seven to eleven years old. 4- Formal Operational that occurs from the age eleven and more.
The first stage is Sensorimotor stage which occurs in kids from birth