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.
Other
Canal Kids: Grandes Ingenerates (Big Inventions)
An exploration of four defining scientific inventions/discoveries of recent history: plastic, laser technology, electricity, and bar codes. The history and development of these technologies, along with examples of their application and...
Texas Instruments
Texas Instruments: Numb3 Rs: Error Correction
Based off of the hit television show NUMB3RS, this lesson has students explore Hamming Codes, an error correction technique used on slightly unreadable or damaged compact discs. Students see how the Hamming Codes allow a CD player to...
University of Houston
University of Houston: Engines of Our Ingenuity
The Engines of Our Ingenuity is a radio program that tells the story of how our culture is formed by human creativity. The program uses the record of history to reveal the way art, technology, and ideas have shaped us. Episode topics...
Other
Stat Soft: Statistics Glossary
Dozens of statistical terms are defined and illustrated in this glossary.
Curated OER
Etc: France Before the Revolution, 1715 1789
A map of France before the Revolution, from the Regence (1715) to the execution of Louis XIV (1789). This map is color-coded to show the French territory and boundaries of French administrative departments, territorial acquisitions from...
Curated OER
Etc: Maps Etc: Religious Divisions of Germany, 1610
Map of Germany during the reformation showing the religious divisions of Germany prior to the Thirty Years' War, circa1610. This map is color-coded to show the territorial boundaries of the Roman Catholics in orange, Lutherans in blue,...