Piaget And Vygotsky's Cognitive Development Theory

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Piaget and Vygotsky have a significant influence and contribution in the field of developmental phycology with a concentration on cognitive development theory. This paper’s focus is to compare and contrast those two famous psychologists. Moreover, will include a short summary of their theories; similarities and differences between their cognitive development theories, and explain what can be gained after we understand those theories.
Psychologists and Their Theories
Jean Piaget, biologist and psychologist. He is the author of more than 50 books and the recipient of Erasmus (1972) and Balzan (1978) prizes. He has an over sixty years of experience in child psychology with contribution in child’s cognitive development theory. He calls his collective theories on child cognitive development a “genetic epistemology” (, 2016). Piaget’s theory emphasizes that child’s cognitive development evolves in four distinct stages from birth to adolescence and that learning happens after development occurs. Biology dictionary defines cognitive development as “the study of childhood neurological and psychological development. Specifically, cognitive development is assessed based on the level of conception, perception, information processing, and language as an indicator of brain development.” (, n.d.). According to Piaget, during the cognitive development, a child acts on his/her own to construct the knowledge.
Lev Vygotsky, researcher and theoretician.
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