Whose theory emphasizes the importance of social interaction in cognitive development?

The emphasis on social interaction in cognitive development is a central aspect of Vygotsky's theory. He posited that cognitive growth occurs through interactions within a cultural context, highlighting the role of social interaction in learning. Vygotsky introduced concepts such as the Zone of Proximal Development (ZPD) and scaffolding, which illustrate how learners engage with more knowledgeable others to enhance their understanding and skills. He believed that language and communication are key tools that facilitate this interaction, ultimately shaping an individual's cognitive processes. This framework positions social interaction as an essential mechanism through which individuals develop higher-order thinking skills and knowledge.