–series of 4 distinct stages in intellectual development
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•(1) Motor or Individual Stage : (Birth to 2 years)
In this stage, motor habits assume a ritual character or he responds according to his own desires.
(2) Co-operative Stage : (2 to 7 years of age)
In this stage, the child’s play is with a disregard for rules.
(3) Codification of Rules Stage : (7 to 11 years of age)
In this stage, rules are respected through the notion of them is vague.
(4) Egocentric Stage : (11 to 12 years of age)
In this stage, the child observes the society’s rules, customs, etc.
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THE THEORY OF COGNITIVE DEVELOPMENT
Jean Piaget’s Theory of Cognitive Development
Jean Piaget stressed that children actively construct their own cognitive worlds and information is not just poured into their mind from the environment.
There is difference between the Psychoanalytic theories and Cognitive theories.
Psychoanalytic theories stress the importance of the unconscious thoughts of the children, while cognitive theories emphasize their conscious thoughts. In fact, cognitive theory in other words is a theory of knowledge.
This is also a collective term for philosophical theories, which seek to explain the nature, mechanisms and value of cognition by studying the general relationship between subject and object, thought and world. There are two important cognitive theories:
•THEORY OF COGNITIVE DEVELOPMENT
•INFORMATION PROCESSING
First :THE Theory of Cognitive Development
Jean Piaget believed that all children pass through a series of distinct stages in intellectual development. Many of his ideas came from the observations of his own children as they solved various thought problems.

Piaget’s observations convinced him that intellect grows through processes of assimilation and accommodation.
The intellect of children is fundamentally different from the grownups.
It is this assumption that is central to Piaget’s theory of cognitive development that children undertake.
Piaget believed that children adapt their thinking to include new ideas because additional information furthers understanding.
He saw mental processes, especially intelligence, as apparatuses for interaction with the world.
Piaget also believed that we all go through four stages in understanding the world.
He also believed that each of the stage is age-related and consisted of distinct ways of thinking.
(1) Motor or Individual Stage : (Birth to 2 years)
In this stage, motor habits assume a ritual character or he responds according to his own desires.
(2) Co-operative Stage : (2 to 7 years of age)
In this stage, the child’s play is with a disregard for rules.
(3) Codification of Rules Stage : (7 to 11 years of age)
In this stage, rules are respected through the notion of them is vague.
(4) Egocentric Stage : (11 to 12 years of age)
In this stage, the child observes the society’s rules, customs, etc.


In this way, Piaget classified the four stages whereby the child proceeds from the mechanical, motor stage to egocentric individual to social stage of cognitive development.
In the social co-operative stage, rules for very young are sacred realities, while they are matters of mutual agreement for grown-up youth.
For the moral judgment of children, the social facts such as, constraint and unilateral respect is very important in the life of children.
And for moral facts co-operation and mutual respect is very important for their development.
In this regard, Piaget wrote:
"The sense of justice, though naturally capable of being reinforced by the precepts and the practical examples of the adult, is largely independent of these influences, and requires nothing more for its development than the mutual respect and solidarity which holds among children themselves."
In Piaget’s theory on moral development, we can observe that it distinguishes between the morality of younger children and the autonomous morality of older children.
Piaget’s ideas on formal operational are thought to have implications for understanding adolescent’s moral development.