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. 

While this presentation is not heavy in text it more than makes up for it with the telling images of life in New York at the turn of the century. Use as a supplemental lecture tool when covering immigration, tenements, Shirtwaist...

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 plan in a series of nine....