2. CONCRETE OPERATIONAL STAGE
(7 to 11 years)
“In this stage the capacity for logical thought first
emerges.”
Important mental abilities developed
 Inductive – deductive reasoning
 Flexibility in thinking
 Understanding the principle of conservation
 Classification and serialization
 Transitivity
 Reversibility of thought

3. INDUCTIVE - DEDUCTIVE REASONING
The child begins to think in terms of set of inter
related principles rather than a set of knowledge.

4. Flexibility In Thinking
 The child’s egocentrism waves and he is able to take
other’s view points.
 He did not think of himself as the center of external
world.

5. UNDERSTANDING THE PRINCIPLE OF
CONSERVATION
“ Which picture contain large number of green
blocks? ”

6.  Understanding principle of Conservation:
The child now develops the ability to conserve
both in terms of quantity and number of objects.
He can now very well think that the change in
appearance of an object does not alter either it’s
quantity or it’s number.

7. HOW WE CAN CHECK ABILITY TO CONSERVE IN
TERMS OF QUANTITY?

9. CLASSIFICATION AND SERIALIZATION
Can you classify these?
Apple, Carrot, Orange, Grapes, Ladies finger,
Pine apple, Cabbage, Cucumber, Banana.
Can you arrange the numbers in ascending order?
33, 12, 56, 7, 17, 9, 50.

10. Classification and serialization:
 The child develops the ability to classify objects.
 He develops the under standing of relational terms
and also the ability of serialization.

11. TRANSITIVITY
"Neethu is taller than Divya, Divya is taller
than Asha.”
 Then who is taller among these girls?
 Can you find the missing number?
7, 10 ,13, _ , 19 , 20 , 23, 26

12.  Transitivity:
Transitivity is the ability to recognize relation among
the series.
 Reversibility of thought.
At this stage the child learn to carry a thought
backward and forward in time

14. FORMAL OPERATIONAL STAGE
(12 to 15 years)
In this stage the child’s thought process become quite
systematic and reasonably well integrated.
Important accomplishment of the period:
 Ability to deal with abstraction
 Hypothetico – deductive reasoning
 Systematic approach to solve the problem
 Use of abstract rules
 Ability to transfer knowledge

16. CONCLUSION
The organization of the mental structure in all
children always take place in a particular order
involving definite stages of intellectual development.
Thus although children of the same age may differ in
terms of possession of mental abilities, the order, in
which the abilities evolve, and the pattern of
development are quite constant and universal. In this
way according to Piaget , after the expiry of the formal
operational stage the child may reach full intellectual
potential.

17. THANK YOU