Curated OER
Transportation Then and Now
Compare and contrast how transportation has changed throughout the years. This image-driven slide show depicts a variety of advances in transportation. Covered wagons, coaches, trolley cars, boats, and bikes are shown as they were in the...
Curated OER
Times Marches On
In this PowerPoint, students learn to distinguish between the terms "ancient" and "modern." The presentation gives visual and and written definitions of these words. Students respond to 5 questions that require them to decipher...
Curated OER
Infrared Telescope
Most of the twenty slides in this presentation include photographs or diagrams, making it an eye-catching way to teach about infrared telescopes. The pros and cons of using infrared light to study outer regions of space are explained....
US Army Center
U.s. Army Center of Military History: Gulf War Photographs
A collection of photographs taken during the Gulf War by the XVIII Airborne Corps History Office. They are representative of the types of photographic products generated during combat and contingency operations as historical evidence by...