Rochelle has a glass of Kool-Aid. She pours her Kool-Aid into a toy teacup, and then she pours the Kool-Aid from the teacup into
a beer stein. She then pours it from the beer stein back into the original glass. She knows the amount of Kool-Aid has not substantially changed. What does this exemplify? choices abstract
thinking abstraction
preoperational stage
reversibility
Reversibility is the capability of reversed things. It is the ability to re-establish the original condition after the change by reverse. It can be said that we can wear a dress on both sides. In Paget's cognitive development the third stage called the concrete operational stage ( pre-operational stage) in which a child develops only logical thinking also develops concept reversibility. It means that several things can be changed and returned to its original state.
For example when a child sees that his ball is default but he does know that the ball can be in its original form by filling the air in the ball.
