Everything you need to understand or teach Foundation and Earth by Isaac Asimov.
Foundation and Earth is the story of one man's quest to justify a decision he's already made. The story begins with Golan Trevize asking why he had decided that all of humankind should become part of Gaia. Gaia is a planet of a single consciousness, a single super organism, in a sense. Trevize gradually explains that he has made that decision while discarding the idea of another plan, one that is...
Foundation and Earth Lesson Plans contain 129 pages of teaching material, including: