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If the supply curve for good X is vertical, then the demand for good X must be perfectly inelastic.
Vygotsky
A seminal theorist in developmental psychology, known for his emphasis on the sociocultural influences on cognitive development.
Zone Of Proximal Development
A concept developed by Lev Vygotsky that represents the difference between what a learner can do without help and what they can achieve with guidance and encouragement from a skilled partner.
Scaffolding
Vygotsky’s term for temporary cognitive structures or methods of solving problems that help the child as he or she learns to function independently.
Middle Adulthood
A stage of human development that occurs roughly between the ages of 40 and 65, focusing on personal and professional growth, stability, and facing the onset of aging.
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