Teacher: Tell me a sentence that starts with an "I". Student: I is the.... Teacher: Stop! Never put 'is' after an "I". Always put 'am' after an "I". Student: OK. I am the ninth letter of the alphabet.

A teacher was giving a lesson on the circulation of the blood. Trying to make the matter clearer, he said: "Now, students, if I stood on my head the blood, as you know, would run into it, and I should turn red in the face." "Yes, sir," the boys said. "Then why is it that while I am standing upright in the ordinary position the blood doesn't run into my feet?" A little fellow shouted, "It's because yer feet ain't empty."

On their 50th wedding anniversary and during the banquet celebrating it, Tom was asked to give his friends a brief account of the benefits of a marriage of such long duration. "Tell us Tom, just what is it you have learned from all those wonderful years with your wife?" Tom responds, "Well, I've learned that marriage is the best teacher of all. It teaches you loyalty, meekness, forbearance, self-restraint, forgiveness -- and a great many other qualities you wouldn't have needed if you'd stayed single."

Teacher (on phone): "You say Michael has a cold and can't come to school today? To whom am I speaking?" Voice: "This is my father."

Teacher: Billy, how do you spell "Crocodile"? Billy: ‘K-R-O-K-O-D-I-A-L' Teacher: No, that's wrong Billy: Maybe it's wrong, but you ask me how I spell it!