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 that the flattened pile has less sand.Based on this information, Roger is probably in Piaget's
Stage of development.
A)concrete operations
B)sensorimotor
C)formal operations
D)preoperational

Question

Quizplus · Accepted Answer

Roger's belief that flattening the pile of sand results in there being less sand indicates his understanding of conservation has not developed yet. This lack of understanding is commonly seen in children in Piaget's preoperational stage of development.

Roger Is Shown Two Piles of Sand and Says That