The London Bridge should not have fallen down. And here's why. After a brief history of bridges and the three main types, class members are introduce to the concepts of tension and compression, the two main forces acting upon bridges. 

A ready-to-print tip sheet on copyright, fair use, and public domain. Includes tips for students on creating a multimedia presentation without violating copyright.

A ready-to-print tip sheet with guidelines for students and teachers about using text, video, pictures, music, and other materials and content sources without violating copyright.