Children's cognitive development: Piaget's theory and the process approach
Citation: Ruth L. Auth (1977) Children's cognitive development: Piaget's theory and the process approach.
A good summary can be found here http://sites.wiki.ubc.ca/etec510/Jean_Piaget%27s_Developmental_Stage_Theory
Piaget believes that a child's cognition develops more rapidly than verbal skills and hence it is better to address the cognition directly rather than through the verbal channel. Example: