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Lev Vygotsky's Theory of Language Development in Children

Ingrowth Stage

Primitive Stage
Naive Stage
External Stage
Ingrowth Stage

     As the child’s egocentric speech turns inward, he enters the final stage. He uses the skills he has acquired to perform logical tasks internally. Rather than counting aloud, he will count “in his head” using part of his short term memory. This much faster than verbalizing each thought and just as his initial speech developed with practice, the more internalized thought and logic is used, the better the child can perform.

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Brad Epperson