Answer: Vygotsky's
Explanation:
Vygotsky's theory states about development of cognition that takes place through social interactions. He believed that child development can be driven through socio-cultural aspects,language,psychological tools,proximal development zone etc.
According to the question, Mr. Pietrzyk's thinking about children;s development and learning through social interaction is depicting Vygotsky's theory.This helps them in peer meeting and groupings.
Tech tools , outsourcing morale , attitude , & the boss.
An isolationist country would likely have state-run media in order to control the information that the populous is allowed to see and not see, as well as having it to use as a vehicle for propaganda. This phenomenon is observable today in North Korean media, for example.