Vygotsky was a Russian psychologist. Known for views on cognitive development. His belief was that children advance faster by a dialectical process whereby a child learns through problem-solving experiences shared with someone else, usually a parent or teacher but sometimes a sibling or peer.
His major contribution to cognitive development is zone of proximal development and scaffolding.
Lev Vygotsky was a Russian psychologist and the founder of cultural-historical psychology. He is known for his theory of sociocultural development, which emphasizes the importance of social interactions and cultural influences on cognitive development. Vygotsky's work has had a significant impact on the fields of psychology and education.