Cathy and Sherri must finish all of their vegetables before they can have dessert.Cathy complains that Sherri doesn't have as much to finish as she does,even though both girls actually have the same amount on their plate (Cathy's vegetables were just more spread out).Cathy's error stems from a failure to understand the concept of ____.
A) conservation
B) complementarity
C) concrete operations
D) object permanence

Question

Quizplus · Accepted Answer

The concept of conservation refers to the understanding that certain characteristics of an object, such as its weight or volume, remain the same even when its appearance has changed. In this case, Cathy is not able to conserve the quantity of vegetables on both plates because she is only considering their appearance and not their actual amount.

Cathy and Sherri Must Finish All of Their Vegetables Before