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.

Question

Quizplus · Accepted Answer

The child needs to be able to decenter and pay attention to multiple dimensions of the situation, specifically the width of the container and the height of the liquid, in order to understand that the amount of water is the same regardless of the shape of the glass. Classifying the liquid or understanding relative knowledge are not necessary for this particular task, and hypothetico-deductive reasoning would be more applicable to more complex problem-solving situations.

For a Child to Be Able to Understand That the Amount