The distance between what a child can accomplish alone and what the child can achieve under the guidance of an adult is what this man called the zone of proximal development.
This man argued that play functions as a means by which children can think and behave in ways more advanced than would otherwise be possible by allowing them to realize unobtainable desires. This man advocated scaffolding as a method of teaching in which the adult adjusts the level of help provided in relation to the child's level of performance.  In one work, he analyzed the concept of inner speech to illustrate the connection between (*) Thought and Language.  The distance between what a child can accomplish alone and what the child can achieve under the guidance of an adult is what this man called the zone of proximal development. For 10 points, identify this Soviet developmental psychologist who argued that children internalize the society in which they live in.
This man argued that play functions as a means by which children can think and behave in ways more advanced than would otherwise be possible by allowing them to realize unobtainable desires.
Lev {Vygotsky}