Read Oedipus Rex.
You need to read Oedipus Rex in order to teach it. You need to reread the play before class, even if you have read it within the last couple of years. You need to make sure that you know all the small details, and can easily recall the main thematic points.
Create a Character List.
A great way to understand Oedipus Rex is to start with the characters. Makes a list of all of the key characters of the play, including some key characteristics of each and important line references.
Review the Plot.
Oedipus Rex is complicated, so review the plot before you teach this classic play. You can find general plot information in most standard introductions and study guides.
Think about the Big Ideas.
To teach Oedipus Rex effectively, you need to be able to think about the big thematic ideas. It is important that you deep read the text to get every single nuance. Try reading with a friend so that you can compare perspective.
Make Oedipus Rex Approachable.
While you may want to teach Oedipus Rex, that does not mean that the students want to learn. Try to make it exciting by relating it to something that they know, such as political power in the school government. You may also want to use a modern English translation so that the language is not a problem.