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Piaget’s Theory of Cognitive Development

Piaget’s Theory of Cognitive Development


Jean Piaget
Piaget is an interesting character in Psychology. His theory of learning differs from many others in some important ways:
First, he focuses exclusively on children; Second, he talks about development (not learning per se) and Third, it’s a stage theory, not a linear progression theory. OK, so what’s he on about?
Well, there are some basic ideas to get your head around and some stages to understand too. The basic ideas are:
Schemas: The building blocks of knowledge.
Adaptation processes: These allow the transition from one stage to another. He called these: Equilibrium, Assimilation and Accommodation.
?Stages of Cognitive development: Sensorimotor; Preoperational; Concrete Operational; Formal Operational.
So here’s how it goes. Children develop of knowledge about the world. These are clusters of connected ideas about things in the real world that allow the child to respond accordingly.
When the child has developed a working Schema that can explain what they perceive in the world,
When the child uses the schema to deal with a new thing or situation, that Schema is in Assimilation and Accommodation happens when the existing Schema isn’t up to the job of explaining what’s going on and needs to be changed.
Once it’s changed, it returns to Equilibrium and life goes on. Learning is, therefore, a constant cycle of Assimilation; Accommodation; Equilibrium; Assimilation and so on…
All that goes through the 4 Stages of Cognitive Development, which are defined by age:

Piaget’s Stages of Cognitive Development

The Sensorimotor Stage runs from birth to 2 years and the child spends their time learning basic and Object Permanence (the idea that something still exists when you can’t see it).
The Preoperational Stage runs from 2 years to 7 years and the child develops more Schemas and the ability to think Symbolically (the idea that one thing can stand for another; words for example, or objects). At this point, children still struggle with Theory of Mind (Empathy) and can’t really get their head around the viewpoints of others.
The Concrete Operational Stage runs from 7 years to 11 years and this is the Stage when children start to work things out in their head rather than physically in the real world. They also develop the ability to Conserve (understand that something stays the same quantity even if it looks different).
The Formal Operational Stage runs from 11 years into adulthood and this is where abstract thought develops, as does logic and cool stuff like hypothesis testing.
According to Piaget, the whole process is active and requires the rediscovery and reconstructing of knowledge across the entire process of Stages.
Understanding the Stage a child is in informs what they should be presented with based on what they can and cannot do at the Stage they’re in.
Piaget’s work on cognitivism has given rise to some brilliant work from people like John Sweller who developed the fantastic and John Flavell’s work on

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