Ten facts that you didn't know about cognitive development in children.
Young children naturally wonder about cause and effect, and are motivated to find out all the "hows" or "whys" of the universe.
Playing with dolls, looking through a box of toys, or banging together blocks in an haphazard fashion, they are actually engaged in a rational process of making hypotheses and evaluating statistical data. They also dismiss prior beliefs when presented stronger evidence. They have remarkable psychological intuition, which can be used to determine the motivations, desires and preferences of others by watching their actions.
Statistics help children learn about people and they then help their peers to evaluate the evidence in light of this knowledge. This is a continuous, strengthening cycle.