Teaching Antigone involves teaching the following literary devices:
Dramatic Irony: Everybody except Creon knows that Creon has caused the curse to continue on Thebes. In addition, the audience knows that Antigone, a woman, has committed a crime, that Creon is convinced a man has committed.
Verbal Irony: Antigone's and Haimon's speech to the king drips with verbal irony.
Situational Irony: The king finally realizes his mistake but can do nothing about it.
Elements of Tragedy: The plot follows Aristotle's explanation of Tragedy.
Tragic Hero: Some say the tragic hero is Antigone; most say it's Creon.
Foreshadowing: The sense of impending doom is inescapable.
Mood: It's a depressing play. That's why they call it a tragedy.
Individual vs. Society Conflict: Can one seemingly insignificant individual make a difference? Sure, but she dies for it.
Figurative Language: Teaching metaphors has never been this much fun. Check out the argument between Haimon and Creon and the one between the soothsayer and Creon.