This Study Guide puts into context this first play in the trilogy Oedipus Rex, Oedipus at Colonus and Antigone by Sophocles. The informative guide supplies: a clear, original account of the back-story: the Myth of Oedipus. a detailed guide to Greek Tragedy; in-depth questions on the play designed to encourage original thought, ideas and discussion. a literary terms activity with student sheets; a literary terms glossary, including terms specifically used in Greek plays;