August 28, 2009 10:33 PM Subscribe
Please help me remember the name of this stage of psychological development, where you can begin to discern the volumetric differences between containers of different sizes.
posted by Sutekh to Science & Nature (6 answers total) 1 user marked this as a favorite
Some time ago I remember reading an anecdote about a psychologist who was visiting his friend's family. The family consisted of the mother and the father, both also psychologists, and a five year old boy and seven year old girl.
As he was helping prepare lunch, he showed the boy two different glasses and said, "which holds the most water?"
And the boy said, "I'd say this one, but you should ask my sister. She already has XXXXX".
What is XXXXX?