Seven year old Alice is working with clay in art class and she rolls a round ball of clay between her hands until it becomes a long rope of clay. However, she decides that she doesn't want the rope of clay, but would prefer that the clay is the shape of a ball again. Alice knows that this is possible. Piaget would say that Alice is demonstrating knowledge of_____________-
Reversibility is the ability to recover or return something to it's original or initial position. This is what Alice is trying to do with clay from the shape of the ball to rope and back to being ball.
