Interpreting the Geologic History of Canyon de Chelly
Holly Godsey, University of Utah
The is a two part lesson designed to given in-service teacher an experience in field geology. The lesson is designed by Canyon de Chelly, AZ but can be used anywhere there are outcrops of two or more rock types.

Rates of Change and Deep Time in the Middle Grades Classroom
Fred Siewers, Western Kentucky University
The nature and scientific measurement of geological and cosmological time are among the most misunderstood and difficult to teach concepts in all of K-12 science education. To address this issue, a multi-disciplinary team of geologists, astronomers and education professionals at Western Kentucky University developed a series of professional development workshops for pre- and in-service middle grades teachers. The participants clearly advanced their content understanding of geological and cosmological time and the implementation plans received clearly show a desire to apply many of the activities learned in the workshop.