Preschool children and even infants have shown surprising abilities in the spatial domain (i.e., surprisingly better than those postulated by Piaget). However, the discovery of such abilities does not compel adoption of a nativist stance. First, there is important developmental change following these starting points. Second, although there have been claims of an early geometric module that would favor nativism, recent evidence does not support this idea. Spatial development is best conceptualized as the product of experience-expectant interactions.