Jean Piaget was a Swiss developmental psychologist who studied cognitive development in children. He believed that children's cognitive structures become more complex through the processes of assimilation and accommodation. Piaget identified 4 stages of cognitive development: sensorimotor, preoperational, concrete operational, and formal operational. His theory emphasized that children are active learners who construct knowledge through hands-on experiences with objects and interactions with others. Piaget's work has greatly influenced theories of education by highlighting the importance of understanding students' cognitive abilities at different ages.

1. PIAGET'S THEORY OF
COGNITIVE DEVELOPMENT
AYESHA SABAHATH
BA PEP
FINAL YEAR

2. JEAN PIAGET (1896-1980) :
HISTORY
• Born: August 9, 1896, Switzerland
• Died: September 16,1980 (Age 84)
• Parents: Eldest son of Arthur Piaget and
Rebecca Jackson.
• Education: Received Ph.D. from
University of Neuchatel in 1918.
• Wife: Married to Valentine Chatenay in
1923
• Children: 3 children namely Jacqueline,
Lucienne and Laurent whose intellectual
development from infancy to language
was studied by Piaget.

3. INTRODUCTION
• Jean Piaget (1896-1980) was one of the 20th century's most influential researchers in the
area of developmental psychology.
• He was originally trained in the areas of biology and philosophy and considered himself a
"Genetic Epistemologist".
• Piaget wanted to know how children learned through their development in the study of
knowledge.
• He administered Binet's IQ test in Paris and observed that children's answers were
qualitatively different.
• Piaget's theory is based on the idea that the developing child builds cognitive structures.
• He believes that the child's cognitive structure increases with the development.
• Piaget's Theory of infant development were based on his observations of his own three
children.

4. WHAT IS COGNITION?
• The term cognition is
derived from the latin word
"cognoscere" which means
"to know" or "to recognise"
or "to conceptualise".
• Cognition is "the mental
action or process of
acquiring knowledge and
understanding through
thought, experience, and the
senses."

5. WHAT IS COGNITIVE
DEVELOPMENT?
• Cognitive Development is the emergence of the ability to think and
understand.
• The acquisition of the ability to think, reason and problem solve.
• It is the process by which people's thinking changes across the life
span.
• Piaget studied Cognitive Development by observing children in
particular, to examine how their thought processes changed with age.
• It is the growing apprehension and adaptation to the physical and
social environment.

6. HOW COGNITIVE
DEVELOPMENT
OCCURS?
• Cognitive Development is gradual and orderly
changes by which mental process becomes more
complex and sophisticated.
• The essential development of cognition is the
establishment of new schemes.
• Assimilation and Accommodation are both the
processes of the ways of Cognitive Development.
• The equilibration is the symbol of a new stage of the
Cognitive Development.

7. KEY CONCEPTS :
• Schema : Schema is an internal representation of
the world. It helps an individual understand the
world they inhabit. They are cognitive structures
that represent a certain aspect of the world, and can
be seen as categories which have certain pre-
conceived ideas in them. For example, my schema
for Christmas includes: Christmas trees, presents,
giving, money, green, red, gold, winter, Santa Claus
etc. Someone else may have an entirely different
schema, such as Jesus, birth, Church, holiday,
Christianity etc

8. • Assimilation :It is using an
existing schema to deal with
a new object or
situation.Here, the learner
fits the new idea into what
he already knows.In
Assimilation, the schema is
not changed, it is only
modified. Example : A 2
year old child sees a man
who is bald on top of his
head and has long frizzy
hair on the sides. To his
father’s horror, the toddler
shouts “Clown, clown”

9. • Accommodation : This happens when the existing
schema (knowledge) does not work and needs to be
changed to deal with a new object or situation.In
Accommodation, the schema is altered; a new schema
may be developed. Example : In the “clown” incident,
the boy’s father explained to his son that the man was
not a clown and that even though his hair was like a
clown’s, he wasn’t wearing a funny costume and wasn’t
doing silly things to make people laugh.
• With this new knowledge, the boy was able to change
his schema of “clown” and make this idea fit better to a
standard concept of “clown”.

10. • Equilibration : Piaget believed that cognitive
development did not progress at a steady rate, but
rather in leaps and bounds. Equilibrium occurs when a
child's schemas can deal with most new information
through assimilation. As a child progresses through the
stages of cognitive development, it is important to
maintain a balance between applying previous
knowledge ( assimilation) and changing behavior to
account for new knowledge (accommodation).
Equilibrium helps explain how children are able to
move from one stage of thought to the next.

12. THE SENSORIMOTOR STAGE
(BIRTH TO 2 YRS)
- INFANCY
• Infants construct an understanding of the world by
coordinating sensory experiences (seeing, hearing) with
motor actions (reaching, touching).
• Develop Object Permanence (memory) - Realize that
objects exist even if they are out of sight.
• Infants progress from reflexive, instinctual actions at
birth to the beginning of problem solving (intellectual)
and symbolic abilities (language) toward the end of this
stage.

13. PREOPERATIONAL STAGE
(2-7 YRS)
-TODDLER AND EARLY
CHILDHOOD
• This stage begins when the child starts to use symbols and language. This is a
period of developing language and concepts. So, the child is capable of more
complex mental representations (i.e, words and images). He is still unable to
use 'operations', i.e,logical mental rules, such as rules of arithmetic. This stage
is further divided into 2 sub-stages :
• Preconceptual stage (2-4 yrs) : Increased use of verbal representation but
speech is egocentric. The child uses symbols to stand for actions; a toy doll
stands for a real baby or the child role plays mummy or daddy.
• Intuitive stage (4-7 yrs) : Speech becomes more social, less egocentric. Here
the child base their knowledge on what they feel or sense to be true, yet they
cannot explain the underlying principles behind what they feel or sense.

14. THE FOLLOWING ARE THE KEY
FEATURES OF THIS STAGE :
• Egocentrism: The child's thoughts and
communications are typically egocentric (i.e, about
themselves or their own point of view). Eg.: "if i can't
see you, you also can't see me". It is the inability to
see the world from anyone else's eyes. It is well
explained by Piaget as Three Mountain Task.
• Animism: Treating inanimate objects as living ones.
Eg.: children dressing and feeding their dolls as if they
are alive.
• Concentration: The process of concentrating on one
limited aspect of a stimulus and ignoring other
aspects. It is noticed in Conservation. Conservation
on the other hand is the knowledge that quantity is
unrelated to the arrangement and physical appearance
of objects. Children at this stage are unaware of
conseravtion.

15. CONCRETE OPERATIONAL STAGE
(7-12 YRS)
-CHILDHOOD AND EARLY
ADOLESCENCE
THE CONCRETE OPERATIONAL STAGE IS CHARACTERIZED
BY THE APPROPRIATE USE OF LOGIC. IMPORTANT
PROCESSES DURING THIS STAGE ARE :
• Seriation: The ability to sort objects in an order according to size, shape or any
other characterstic. Eg.: if given different-sized objects, they may place them
accordingly.
• Transitivity: The ability to recognize logical relationships among elements in a
serial order. Eg.: if A is taller than B and B is taller than C, then A must be taller
than C.
• Classification: The ability to group objects together on the basis of common
features. The child also begins to get the idea that one set can include another.
Eg.: there is a class of objects called dogs. There is also a class called animals. But
all dogs are also animals, so the class of animals includes that of dogs.

16. • Decentring: The ability to take multiple adpects of a situation into
account. Eg.: the child will no longer perceive an exceptionally-wide
but short cup to contain less than a normally-wide, taller cup.
• Reversibility: The child understands that numbers or objects can be
changed, then returned to their original state. Eg.: the child will rapidly
determine that if 4+4=8 then 8-4=4, the original quantity.
• Conservation: Understanding that the quantity, length or number of
items is unrelated to the arrangement or appearance of the object or
item.
• Elimination of Egocentrism: The ability to view things from another's
perspective.
• The child performs operations: combining, separating, multiplying,
repeating, dividing etc

17. FORMAL OPERATIONAL STAGE
(12 YRS & ABOVE)
-ADOLSCENCE AND ADULTHOOD
• The thought becomes increasingly flexible and abstract, i.e, can carry out
systematic experiments.
• The ability to systematically solve a problem in a logical and methodological
way.
• Understands that nothing is absolute; everything is relative.
• Develops skills such as logical thought, deductive reasoning as well as inductive
reasoning and sytematic planning etc.
• Understands that the rules of any game or social system are developed by a man
by mutual agreement and hence could be changed or modified.
• The child's way of thinking is at its most advanced, although the knowledge it
has to work with, will change.

18. EDUCATIONAL
IMPLICATIONS
• Emphasis on discovery approach in learning.
• Curriculum should provide specific educational experience based on children's
developmental level.
• Arrange classroom activities so that they assist and encourage self learning.
• Social interactions have a great educational value for Piaget. Positive social actions,
therefore should be encouraged.
• Instruction should be geared to the level of the child. As the level of the child changes at
each stage, the level of instruction or exploratory activities should also change.
• Simple to Complex and Project method of teaching.
• Co-curricular activities have equal importance as that of curricular experiences in the
cognitive development of children.
• Major Goals of education according to Piaget are critical and creative thinking.

19. CONTRIBUTION TO EDUCATION
• Piaget's theory helped educators, parents and
investigators to comprehend the capacity of children in
their different stages.
• He made us conscious with the way children and adults
think.A lot of school programs have been redesigned
taking as base Piaget's discoveries.
• Piaget made a revolution with the developmental
psychology concentrating all his attention to the mental
process and his role with behavior.