Curated OER
Zip Codes
Students discover how a zip code is used. In this zip code lesson, students use the parts of a zip code to find where a letter is going, then find the first number of zip codes based on geographic regions.
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.
Other
Usps: Domestic Rate Calculator
Here is a chart compiled by the United States Postal Service that determines how much postage is required for a letter, large envelope, postcard, and etc. Many links. Link to International Rate Calculator.
Smithsonian Institution
National Postal Museum
Even if you aren't a stamp collector, this is a fascinating stop in your search for US postal service history. Be sure to click on their special selections like "Inverted Jenny, A famous stamp error." Excellent exhibits explain the...
Other
United States Postal Service
As an independent agency of the government, the United States Postal Service homepage offers information on zip codes, address change, stamps, online billing, and variety of other topics.
Other
Usps: Charles W. Chesnutt: Dreamweaver
Celebrate Black Heritage Month by studying this Dreamweaver who used his talents as a teacher, writer, speaker, and activist to persuade people to share his passion for a world in which all people are treated equally. Write poems,...
Other
Usps: The Flags of Our Nation
Explore the unique characteristics of our states with educational activities that compliment the Flags of our Nation stamp series. Learn about our national history, geography, and culture in a fun and interesting way!
Other
Usps: Oscar Micheaux: A Man Ahead of His Time
Celebrate Black History Month by studying this courageous, innovative filmmaker and entrepreneur. Discover how Mr. Micheaux overcame obstacles to become a memorable moviemaker.
Other
International Rate Calculator
You can use this international rate calculator provided by the US Postal Service to determine shipping cost for various mailings.