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.
In the 1995 case of Vernonia School District v. Acton, the Supreme Court upheld a school district's policy that required students to consent to random drug testing in order to participate in sports
