Piaget's Mountains Task [MUSIC PLAYING] NARRATOR: In this mountains game, you really get a sense that children aren't just little adults. They often see the world in surprising ways. Here the adult and child sit at opposite sides of the table. They can see one side of the mountain seen in front of them. Once they've had a chance to look at the mountain, the adult asks the child to point to which of the four mountain scenes that the adult can see. This requires children to think about the mountain scene from another person's perspective. Often younger children, like five-year-old Braden, they point to the mountain scene that corresponds with their own perspectives of the mountains and not the adults. However, a few years can make all the difference. Delaney, who is eight years old, can take someone else's perspective more easily. And instead of pointing to the scene from her own perspective, she points to the mountain scene that the adult can see. SARA LANGWORTHY: This game really shows how often children think about and see the world differently than adults. But this is a normal process where children develop what's called, a theory of mind or the ability to see something from someone else's perspective. Sometimes it seems like young children just don't care about other people's thoughts or feelings, but really it's a natural process of learning how to take another perspective and think about something in a very different way than they're used to. [MUSIC PLAYING]