Teacher

TEACHER: Why are you late?
L-JOHNY: Because of the sign.
TEACHER: What sign?
L-JOHNY: The one that says, "School Ahead, Go Slow."

TEACHER: What is the chemical formula for water?
L-JOHNY: "HIJKLMNO"!!
TEACHER: What are you talking about?
L-JOHNY: Yesterday you said it's H to O!

TEACHER: Johny, why are you doing your maths sums on the floor?
L-JOHNY: You told me to do it without using tables!
TEACHER: George, go to the map and find North America
GEORGE: Here it is!
TEACHER: Correct. Now, Johny, who discovered America ?
JOHNY: George!

TEACHER: Johny, why do you always get so dirty?
Little JOHNY: Well, I'm a lot closer to the ground then you are.
L-JOHNY: Dad, can you write in the dark?
FATHER: I think so. What do you want me to write?
L-JOHNY: Your name on this report card.