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Jean Piaget was a Swiss Psychologist and born on August 9th, 1896. Piaget was known for his work with his theory of Cognitive Development and the study on children.

In 1955, Piaget created the International Center for Genetic Epistemology at the University of Geneva in Geneva, Switzerland.

Two of his main field focuses was Developmental Psychology and Epistemology.

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Lev Vygotsky was a Russian Psychologist who is known for his work involving Psychological Development in children.

Vygotksy was born on November 17th, 1896 in the town of Orsha Mogilev Governorate of the Russian Empire, which is now known as Belarus.

Vygotsky is best known for his work of sociocultural theory.

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Theory of Cognitive Development ~ Jean Piaget 

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Theory of Cognitive Development ~ Jean Piaget 

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During the sensorimotor stage, from birth to 2 years old, there is a lot of growing and development going on. The sensorimotor stage involves movements and instincts, learn about the environment through their actions and listening, etc.

The Pre-operational Stage, from 2 to 7 years old, they begin to learn to use words and improve language and overall thinking.

The Concrete Operational Stage, between the ages 7 to 11 years old, thinking improves even more, as logic, problem solving skills, etc all begin to come together.

Lastly, The Formal Operational Stage, ages 12 and up, not only have potential skills of critical thinking and problem solving, but also think in a more philosophical and social way.

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Sociocultural Theory has to do with how we think, feel, behave, etc has to do with our environment and social interaction. Sociocultural Theory explores how our environment and what we’re surrounded by makes who we are.

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Four Stages of Cognitive Development ~ Jean Piaget 

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Four Stages of Cognitive Development ~ Jean Piaget 

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Sensorimotor Stage: birth to 2 years old.

Pre Operational Stage: ages 2 to 7 years old.

Concrete Operational Stage: ages 7 to 11 years old.

Formal Operational Stage: ages 12 and up.

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Stages of Sociocultural Theory of Cognitive Development ~ Lev Vygotsky 

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Stages of Sociocultural Theory of Cognitive Development ~ Lev Vygotsky 

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The Zone of Proximal Development: The difference between what a learner is able to do without help and what they can do with the assistance or guidance of someone else.

The Zone of Proximal Development includes; what a learner can do, can do with the help of others and cannot do.

Vygotksy believed that parents, peers and caregivers are responsible for the functioning of a child’s environment.