Here is a really unique way to present information on the American Civil War. The slide show begins with a look at the first true photojournalist, Matthew Brady. It describes his tools and methods, then shows his pictures. Each image is...

When a levee fails, it means disaster. Introduce your class to hurricanes and the technologies used to help protect against them. The included presentation provides background information using Hurricane Katrina as a reference. 

The plot thickens to get a functional understanding. After a short review of plotting points on the coordinate plane, class members learn the difference between functions and relations in the second lesson in a series of nine. They...