Everything you need to understand or teach Dawn (Lilith's Brood) by Octavia E. Butler.
Although grounded in familiar images of science fiction, Octavia Butler's Dawn is more than an adventure; it is a philosophical meditation on the fundamental principles of the human race. Set entirely aboard a spaceship in the wake of a global apocalypse, Dawn follows the story of Lilith Iyapo, a human who is awakened by a group of extraterrestrial beings called the Oankali who insist that they want to help rehabilitate Earth—for the small price of a genetic exchange with the human beings they have in their custody. It addresses such diverse themes as gender, sex, bigotry, domestication, and human nature.