Any parent knows that before a child learns to build, he learns to tear down. Our children are two years apart. I still remember our eldest, Camille, running into our room with tears when she was four years old. Her little brother, Soren, had just knocked down her latest block creation.

Psychologists describe this stage as destructive play. Before toddlers can construct something with intention, they are learning cause and effect, physics, spatial reasoning, and fine motor control. Every parent remembers the stage when their toddler begins throwing the spoon, fork, or bowl onto the floor, watching with fascination as gravity does its work.