According to Piaget, which stage occurs from approximately ages 2 to 7, in which children's use of symbolic thinking grows, mental reasoning emerges, and the use of concepts increases?
Piaget proposed stages of cognitive development, and claimed that in the preoperational stage children have a significant cognitive development and are able to mentally represent an object that is not present as well as use symbolism and language to get what they want. However, their egocentrism does not allow them to distinguish between their own view and other people's views.
