For a Child to Be Able to Understand That the Amount

Multiple Choice

For a child to be able to understand that the amount of water in a tall, thin glass is still the same amount that was it was when it was in a short, fat glass, the child must be able to

A) classify the liquid as a substance that can be found in both a tall, thin glass and a short, fat glass.
B) use hypothetico-deductive reasoning to solve the problem.
C) decenter on the height of the liquid in the glass and pay attention to both the width of the container and the height of the liquid.
D) understand that knowledge is not absolute but relative, so they can resolve contradictory information.