Improving Observational Skills
Robert Filson, Green River Community College
Students are asked to make general observations about a geologic photograph both before and after the subject is covered in class, and then compare their observations.

Biogeography photography exercise
Teresa Cohn, Queens University of Charlotte
Students rephotograph historical landscape images from local archives, upload the matched images in Google Earth, and use the whole class's images to analyze environmental changes over the past century.