In Piaget's Cognitive Developmental Theory, actions or mental representations that organize knowledge are called:

• A. Operations
• B. Stages
• C. Reflexes
• D. Schemas

Answer: (D)

Verified step by step guidance

1. Understand the key terms in Piaget's Cognitive Developmental Theory: 'Operations', 'Stages', 'Reflexes', and 'Schemas'.
2. Recall that 'Stages' refer to the broad phases of cognitive development (e.g., sensorimotor, preoperational).
3. Recognize that 'Reflexes' are innate, automatic responses present at birth, not organized knowledge structures.
4. Identify that 'Operations' are mental actions that can be reversed, but they are part of the broader concept of schemas.
5. Know that 'Schemas' are the fundamental units of knowledge—mental frameworks or actions that organize and interpret information, which is the correct answer.