Seth's Mother Pours Two Glasses of Juice for Breakfast

Essay

Seth's mother pours two glasses of juice for breakfast. One of the glasses is taller and narrower than the other. The level of juice is higher in the tall glass compare to the shorter, wider glass. Seth complains that his sister, Aleesha, has more juice than him. Aleesha says, "We both have the same silly!" According to Piaget's theory of cognitive development, explain why Seth thinks that his sister has more, even though his mother poured the same amount in each glass. Which of Piaget's stages is Aleesha most likely in and explain why?