Let your students provide the images and information that lead them to better understanding of Ray Bradbury's short story "A Sound of Thunder." In this technology-dependent activity, students research the scientific theory called "The Butterfly Effect." Then, students delve into the history of science-fiction, Bradbury's legacy, and recent death. Students even investigate how plots using "The Butterfly Effect" have been made into movies and TV shows. Included is a note to teachers with ideas about how this flexible activity can be incorporated in class, as well as a model assignment example. Unlike most lessons, this activity is devoid of graphics, since it will be your students' responsibility to add them! Your students will be well on their way to greater understanding of the short story while gaining motivation to find out what the story is all about!