At what age range does the preoperational stage occur, according to developmental psychology?

The preoperational stage occurs between the ages of 2 and 7, according to Jean Piaget's theory of cognitive development. During this stage, children begin to use language and think symbolically but lack the ability to perform operations that are required for logical reasoning. This period is characterized by significant developments in language and imagination, allowing children to engage in pretend play and use symbols (like words and pictures) to represent objects. However, their thinking is still intuitive and egocentric, meaning they struggle to see perspectives outside their own and often fail to understand the concept of conservation – the idea that quantity doesn't change even when its shape does. Understanding this stage is essential for recognizing the cognitive capabilities and limitations of children in this age group, which can inform educational strategies and developmental expectations.