The range of skill that can be developed with adult guidance or peer collaboration exceeds what can be attained alone. Vygotsky's theory was an attempt to explain conciousness as the end product of socialization. Vygotsky's theory is complementary to the work of Bandura on social learning and a key component of situated learning theory. Because Vygotsky's focus was on cognitive development, it is interesting to compare his views with those of Bruner and Piaget . In particular, the pointing gesture represents an interpersonal connection between individuals.
Cognitive development is limited to a certain range at any given age.
Full cognitive development requires social interaction. Thought and Language. Mind in Society. Cambridge University Press.