Smithsonian Institution
National Postal Museum: Fifteen Objects That Changed Postal History
Useful information about the history of the postal system and about the changes in postal and transportation technologies that have made the U.S. Postal Service what it is today.
National Council of Teachers of Mathematics
Nctm: Figure This: Bar Codes
An exploration of the binary system using U.S. postal zip codes. Discover what numbers the long and short bars in a zip code represent in this one page activity from the NCTM Math Challenges for Families collection.
US House of Representatives
History, Art, and Archives: Changing Social and Institutional Perceptions
The problem faced by congresswomen and other women in society in post-war America was how to balance domestic responsibilities and professional life. Times were changing and congresswomen began to buck traditional congressional practices...
PBS
Pbs: Scale City: Scaling Up Rectangles in the Real World
In this video, students explore Depression-era post office murals and modern outdoor murals to learn how artists use proportional reasoning and measurement to create large-scale paintings. The video ends with the question, "How do...
Other
Lang Media: French in Quebec, Canada
Learn how French is used in many basic situations -- greetings, restrooms, food shopping, the post office -- in Quebec, the French-speaking Canadian province. Sites includes audio/video materials.