Depending on the depth of the dive your class takes into the Trojan War and its mythology, this Cultural Literacy worksheet on Iphigenia, the daughter of Agamemnon, might be a useful short introduction to her. In any case, this is a half-page worksheet with a three-sentence reading and three comprehension questions.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.