Swiss Psychologist Jean Piaget ( 1896-1980 ) proposed the thought of the four phases of childhood cognitive development. These are age-related phases and refer to certain achievements that should be achieved. by the kid. at the terminal of each phase.
The first phase of cognitive development is the Sensorimotor phase. which lasts from birth to around two old ages of age. During this phase. kids learn to organize their senses ( hearing. sight. touch etc. ) with their motor abilities. From two to seven old ages is the Pre-operational phase. Children of this age become capable of more sophisticated thought. The Concrete operational phase stopping points from about seven old ages of age to about 12. These kids put together what they have already learnt. with cognition gained from new experiences. The concluding phase of cognitive development identified by Piaget. is the Formal operational phase. This lasts from twelve old ages of age onwards. Peoples in this phase are capable of more complex idea procedures.
During the Concrete operational phase ( 7 to 12 old ages ) . kids should develop an apprehension of the rule of preservation. Conservation refers to the thought that if an object alters its form or visual aspect. its volume. mass. length or country will non alter. A kid with an apprehension of preservation should be able to believe logically and see that these qualities have non changed. even if they appear to hold done so. Accomplishment of preservation of mass can be demonstrated with two little balls of Plasticine. A kid is shown the Plasticine and agrees that the balls are the same size. One of the balls is so squashed down. A pre-concrete operational kid will likely make up one’s mind that the ‘squashed’ ball is bigger. while a kid at the Concrete operational phase should admit that they are still the same weight or mass. This illustrates the ability of the kid to understand how the object has changed. non merely see the beginning and stop consequence.