Which theory posits that language development is closely linked to overall cognitive development and that children learn through interacting with their environment and manipulating objects?

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Language development grows out of thinking and interacting with the world. In Piaget’s Cognitive Development Theory, children learn most about the world by actively exploring and manipulating objects, solving problems, and noticing how things work. As these experiences build sharper thinking—creating and adjusting mental schemes—the child also develops the ability to label, categorize, and symbolize those experiences with words. In this view, language is a tool that reflects and supports evolving cognitive structures, not something that develops in isolation from reasoning and problem-solving. The environment and hands-on activities provide the occasions for cognitive growth, and language follows as children articulate their growing ideas and understandings.

The other options don’t fit this particular link between language and broad cognitive growth. The Zone of Proximal Development emphasizes learning with guidance in social contexts, not the idea that language development is directly tied to a child’s independent cognitive development through interacting with objects. Psycholinguistics focuses on how language is processed in the mind, rather than how language development tracks cognitive maturation through environmental exploration. Sociolinguistics examines how language varies in social contexts, not the cognitive-developmental pathway that language follows as thinking develops.