I swear I didn't make this up. This seriously happened.
Teacher: So you add this...
Student: Don't you mean subtract?
Teacher: Whut? Oh, yeah, duh! Reverse, Reverse! *looks at class evilly* Everybody clap your hands!
Class: *look at each other stupidly and claps hands*
Teacher: *continues singing song* Slide to the left!
Class: *leans to the left in their seats*
Teacher: Slide to the right!
Class: *leans to the right in their seats*
Everyone: *laughs*
John: *jumps up* CRISS CROSS!
Everyone: *glares at him*
-minutes later-
Teacher: *walks around checking answers* *starts humming old McDonald*
Class: *looks at each other like "Are you Serious?" and starts ROFLing*
Teacher: *finishes* I think that second one was a chicken.
Maddie: I have a great chicken bock.
Teacher: Alright, let's hear it.
Maddie: *looks really stupid* BOOOC-CCCKKKK!!!!
Teacher: Alright, then.
John: Marc has one, too! He does it all the time on the bus!
Teacher: Okay, let's hear you, Marc.
Marc: ((Let me tell you know, we had a thing where we could write a paragraph saying why we needed an extra bonus point. Marc put "I love you.....And remember, I love you")) *walks up to the front of the room and stares at teacher*
Teacher: I'm getting away from you...*walks off*
Marc: *follows*
Teacher: What the....?
Marc: *gets down on one knee and produces a ring like the one you get in the vending machines* Will you marry me, Mr. B?
Teacher: *laughs* Of course I'll marry you, Marc.
John: I KNEW HE WAS GAY!
Teacher: *ignores John* Where'd you get that ring, anyway?
Marc: *gives it back to another student* *sits back in his chair* So where are we going for our honeymoon?