Using the "Celebrate the Century" stamp series, this U.S. Postal Service series commemorates the 20th-century and teaches students about the people, places, and events that have shaped this nation during the past 100 years. Each kit is designed to be taught as a complete and independent unit. This kit, which focuses on the 1990s, contains: (1) 10 teacher's lesson cards; (2) a resource guide; (3) 30 topic cards; (4) 30 student magazines; (5) a poster; (6) assorted other materials for balloting and storage. The 10 lesson topics include: (1) "Celebrate the Century Vote!"; (2) "Let's Get Stamping!"; (3) "A 90's Round Robin Story"; (4) "Windows on the Future"; (5) "Beasty Game"; (6) "Alien World"; (7) "Your Magnificent Museum"; (8) "Dinosaur Dig"; (9) "How Have We Changed?"; (10) "Fun in the Nineties." In addition to these kits, the U.S. Postal Service is celebrating the 20th century by issuing a limited-edition sheet of 15 commemorative stamps for every decade. (LB)