In Piaget's theory, what stage involves the development of logical thinking and mastery of conservation?

• A. Formal Operational Stage
• B. Preoperational Stage
• C. Concrete Operational Stage
• D. Sensorimotor Stage

Answer: (C)

The correct answer highlights the Concrete Operational Stage, which is a crucial phase in Piaget's cognitive development theory. During this stage, typically occurring between the ages of 7 and 11 years, children begin to develop logical thinking. This cognitive ability allows them to perform operations on concrete objects and understand the concept of conservation—that is, the understanding that certain properties of objects, such as volume or mass, remain the same even when their shapes or forms change.

In this stage, children can think logically about concrete events, which enables them to classify objects and engage in more organized and coherent thought processes. The mastery of conservation is a significant milestone during this period, as children learn to recognize that the quantity of an item remains the same despite changes in appearance. For example, when liquid is poured from a short, wide glass into a tall, thin glass, they understand that the amount of liquid is unchanged, despite its different shape.

This developmental stage contrasts with the earlier Preoperational Stage, where children's thinking is more intuitive and egocentric, and they have not yet grasped the concept of conservation. The Formal Operational Stage follows, characterized by abstract and hypothetical reasoning, and the Sensorimotor Stage involves the development of sensory and motor skills rather than logical