It's the second scene in Mr. Morgan's classroom, when he reads the sonnet (Shakespeare) out loud, and then closes the book as if he is finished, and tells the class to rewrite the assignment. The problem is, all sonnets have fourteen lines (exactly) and what he reads has nowhere near that. Either the what he read was labeled incorrectly as a sonnet, or he didn't read the whole thing (which I think would be kind of weird, since he's giving an assignment.)