In
order to understand the theory of cognitive development by Piaget in detail, it
is important to know about the major aspects of the theory. The major aspects
to this theory included schemas, adaptation processes that enable the
transition from one stage to another and the stages of cognitive
development.
In
Piaget’s view, children understand the world around them and experience the
differences as a result of adaptation to the world thorough two process
described as assimilation and accommodation which happens throughout the
person’s life as the person adapts to the environment (Piaget, 1952; Wadsworth,
2004).
Assimilation
is described as the process of using and existing schema to deal with a new
object or a situation while accommodation involves changing of existing schemas
with the knowledge of new information to deal with a new object or situation.
Through both these adaptation process, new schemas might be developed as it
happens simultaneously.
Schema
is the basic constructing block of intelligent behaviour which include both the
mental and physical actions involved in understanding and knowing that help us
to interpret and understand the world (Piaget & Cook, 1952). When a child's
existing schemas are capable of explaining what it can perceive around it, it
is said to be in a state of equilibrium. Equilibration helps to explain how
children are able to move from one stage of the cognitive development into the
next.
Piaget
studied children from
infancy to adolescence about how they learnt and thought. He believed that the
children from all over the world undergo the same sequence of development
despite their cultural differences (Piaget & Cook, 1952). The four stages
of cognitive development identified by Piaget include sensorimotor stage,
preoperational stage, concrete operational stage and the formal operational
stage.