Roger Is Shown Two Piles of Sand and Says That

question 4

Multiple Choice

Roger is shown two piles of sand and says that each pile has the same amount. However, when one pile is flattened with a shovel, he now claims emphatically, "The flat pile has less sand." Based on this information, Roger is probably in Piaget's _______ stage of development.

• A) preoperational
• B) concrete operations
• C) formal operations
• D) sensorimotor