She was very impressed with one particular teacher. The Inspector noticed that each time the class teacher asked a question, every child in the class put up their hands enthusiastically to answer it. More surprisingly, whilst the teacher chose a different child to answer the questions each time, the answers were always correct.
The children were instructed to ALL raise their hands whenever a question was asked. It did not matter whether they knew the answer or not.
If they knew the answer, they would raise their RIGHT hand.
The class teacher would choose a different child each time, but always the ones who had their RIGHT hand raised.
Moral: Would you call it Smart?