Everything you need to understand or teach The Magician's Nephew by C. S. Lewis.
Lewis remarks that The Magician's Nephew "is a very important story because it shows how all the comings and goings between our own world and the land of Narnia first began." He had no trouble with the idea that life might exist on other planets, and before writing The Magician's Nephew, he had written three science fiction novels about what life on other planets might be like: Out of the Silent Planet, Perelandra...
The Magician's Nephew Lesson Plans contain 176 pages of teaching material, including: