One day a little girl brought her school report card home. Immediately she got home, she went to hide it on top of the roof. When her mother came home, she asked:
MOTHER: Where is your report card?
GIRL: It's on top of the roof.
MOTHER: (Shocked) Who asked you to put it there?
GIRL: My class teacher.
MOTHER: How do you mean?
GIRL: He wrote 'keep it up' in my report card.
intelligent and obidient but lack understanding.