The preoperational stage is the second stage in Piaget's
theory of cognitive development. Children begin to take part in symbolic play and
learn to manipulate symbols throughout this stage. This stage begins around age
2, as children start to talk, and lasts until around age 7. The answer is that Piaget’s
explain that Preschool children's tendency headed for centration avoids them
from focusing on other applicable features of a situation.
