Edith Hamilton's book, Mythology, gives an all-encompassing look at Greek Mythology. As an introductory activity, have your students conduct a book study using this activity. This is a great way to cover an entire book in a week or two! Students will be assigned to an individual chapter of the book and will have to create a Power Point presentation explaining their section. They will then have to present this Power Point (using the CCSS Speaking and Listening standards) to the rest of the class.
This file has everything you need to complete this activity!