The book, Tale of an Alaska Whale, tells a story of the origin of the killer whale and is also known as Naatsilanei. Listening to the story, as read from a book or told by a culture bearer or storyteller, is the basis for the unit. Viewing a video of a storyteller adds another dimension to the experience and provides opportunities for comparison activities. Guided reading (for older students), retelling the story and writing a story extension are also part of the unit.