Which Piagetian stage lasts from about age 2 to 6 or 7 and is characterized by language development but does not yet understand conservation?

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

Answer: (B)

Preoperational thinking occurs roughly from ages 2 to 6 or 7 and is marked by rapid language development and the use of symbolic thought, such as pretend play and the use of words as symbols. At this stage children talk a lot and express ideas with language, but they haven’t yet mastered logical operations like conservation. Conservation means understanding that quantities remain the same even if appearances change, and that concept isn’t developed until the concrete operational stage, which comes a bit later.

This combination—expanded language and symbolic thinking without grasp of conservation—fits the described period best. The sensorimotor stage is centered on real-world interactions and object permanence, not language-driven symbolism. The concrete operational stage introduces logical thought and conservation, and the formal operational stage brings abstract reasoning.