Ronald is in the first grade and is given an addition worksheet to complete. At one point on the worksheet, the problems 2 + 5 = and 5 + 2 = are side-by-side. Ronald uses his fingers to count out each problem, although the same numbers are used but in a different order. Ronald is illustrating his lack of
A)reversibility.
B)object permanence.
C)animism.
D)egocentric thought.

Question

Quizplus · Accepted Answer

Ronald's actions illustrate a lack of reversibility, which is the understanding that numbers or objects can be changed and returned to their original condition. In this case, he does not realize that the order of numbers in addition does not affect the outcome.

Ronald Is in the First Grade and Is Given an Addition