Piaget coined the term 'schema' to describe:

• A. Mental concepts of categories or classes.
• B. Mental images of objects
• C. The process of forming rules
• D. The ability to think logically

Answer: (A)

Piaget’s idea of a schema is a mental framework that organizes knowledge into categories or classes. These schemas are the cognitive structures we use to group objects, ideas, and experiences so we can interpret new information efficiently. As we encounter something new, we fit it into an existing category (assimilation) or modify the category to fit the new information (accommodation). This organized system of concepts helps explain how we understand the world, not just how we picture individual objects or how we apply rules or think logically. A mental image of an object is a representation, but a schema is the broader organizing concept behind how we categorize and relate things. The ability to think logically or to form rules describes skills and processes that develop over time, rather than the basic meaning of a schema.