Which theory highlights the use of social interaction and cultural tools to advance cognitive development?

• A. Piaget.
• B. Vygotsky.
• C. Skinner.
• D. Bandura.

Answer: (B)

Thinking develops through social interaction and the use of cultural tools. This view is central to Vygotsky’s sociocultural theory, which holds that cognitive processes are mediated by language and other cultural tools and that learning occurs first in social contexts with guidance from more knowledgeable others. Concepts like the zone of proximal development show how a learner can perform at a higher level with support, and scaffolding describes how that support is gradually removed as independence grows. In contrast, Piaget emphasizes self-driven discovery and stages of development, Skinner focuses on learning via reinforcement and observable behavior, and Bandura centers on observational learning, not the same emphasis on mediated learning through culture and tools.