1) TEACHER: How old were you on your last birthday?
STUDENT: Seven.
TEACHER: How old will you be on your next birthday?
STUDENT: Nine.
TEACHER: That's impossible.
STUDENT: No, it isn't, Teacher. I'm eight today.

2) TEACHER: George, go to the map and find North America.
GEORGE: Here it is!
TEACHER: Correct. Now, class, who discovered America?
CLASS: George!

3) TEACHER: Willy, name one important thing we have today that we didn't have ten years ago.
WILLY: Me!

4) SUBSTITUTE TEACHER: Are you chewing gum?
BILLY: No, I'm Billy Anderson.

5) TEACHER: Alfred, how can one person make so many stupid mistakes in one day?
ALFRED: I get up early.

6)TEACHER: Tommy, why do you always get so dirty?
TOMMY: Well, I'm a lot closer to the ground then you are.

7)HAROLD: Teacher, would you punish me for something I didn't do?
TEACHER: Of course not.
HAROLD: Good, because I didn't do my homework.

8)TEACHER: Why are you late?
WEBSTER: Because of the sign.
TEACHER: What sign?
WEBSTER: The one that says, "School Ahead, Go Slow."

9)TEACHER: I hope I didn't see you looking at Don's paper.
JOHN: I hope you didn't either.

10)GARY: I don't think I deserve a zero on this test.
TEACHER: I agree, but it's the lowest mark I can give you.

11)MOTHER: Why did you get such a low mark on that test?
JUNIOR: Because of absence.
MOTHER: You mean you were absent on the day of the test?
JUNIOR: No, but the kid who sits next to me was.

12)SILVIA: Dad, can you write in the dark?
FATHER: I think so. What do you want me to write?
SYLVIA: Your name on this report card.

13)TEACHER: Well, at least there's one thing I can say about your son.
FATHER: What's that?
TEACHER: With grades like these, he couldn't be cheating.

14) TEACHER: In this box, I have a 10-foot snake.
SAMMY: You can't fool me, Teacher... snakes don't have feet.

15) HYGIENE TEACHER: How can you prevent deseases caused by biting
insects?
JOSE: Don't bite any.

16) TEACHER: Ellen, give me a sentence starting with "I".
ELLEN: I is...
TEACHER: No, Ellen. Always say, "I am."
ELLEN: All right... "I am the ninth letter of the alphabet."

17) TEACHER: Max, use "defeat," "defense," and "detail" in a sentence.
MAX: The rabbit cut across the field, and defeat went over defense before detail.

18) MOTHER: Why on earth did you swallow the money I gave you?
JUNIOR : You said it was my lunch money.

19) TEACHER: If you received $10 from 10 people, what would you get?
SASHA: A new bike.

20) TEACHER: If you had one dollar and you asked your father for  another, how many dollars would you have?
VINCENT: One dollar.

21) TEACHER(sadly): You don't know your arithmetic.
VINCENT(sadly): You don't know my father.

22) TEACHER: If I had seven oranges in one hand and eight oranges in the other, what would I have?
CLASS COMEDIAN: Big hands!

23) BOY: Isn't the principal(校长） a dummy!
GIRL: Say, do you know who I am?
BOY: No.
GIRL: I'm the principal's daughter.
BOY: And do you know who I am?
GIRL: No.
BOY: Thank goodness!

24)TEACHER: Didn't you promise to behave?
STUDENT: Yes, Sir.
TEACHER: And didn't I promise to punish you if you didn't?
STUDENT: Yes, Sir, but since I broke my promise, I don't expect you to keep yours.