Everything you need to understand or teach Lucifer's Hammer by Larry Niven.
Tim Hamner arrives at a party thrown by Julia and George Sutter to announce that a comet he discovered has been authenticated and named the Hamner-Brown Comet. The "Brown" is a youngster who reported his own sighting about the same time. Tim explains that he found it first but waited for some time to be certain that it really was a comet before making the report.
Over the coming months, many people will worry that the comet might strike Earth and some prepare for end-of-the-world scenarios. Tim soon meets Harvey Randall, a documentary film maker who covers the scientific data regarding the Hamner-Brown. Harvey professes to believe the experts who say the chances of a comet strike are minimal but makes some preparations anyway. When the strike does occur, thieves hit the Randall home, killing Harvey's wife, Loretta, and taking all the supplies Harvey had gathered. Harvey's son...
Lucifer's Hammer Lesson Plans contain 154 pages of teaching material, including: