The preoperational stage occurs roughly between the ages 2 ... Children could see in the dollhouse that a toy was hidden behind a piece of furniture. Children were then taken into a full-size ...

Specifically, Piaget posited that during the Preoperational Stage, or second stage of childhood development, young children indiscriminately attribute mental lives to the toys they own ...

There are four distinct stages: sensorimotor, preoperational, concrete operational, and formal operational. Jean Piaget was a renowned psychologist and cognitive theorist in the 20th century who ...