Kathryn Keranen is a retired teacher. She was instrumental in introducing GPS, GIS, and remote sensing into the geosystems curriculum in Fairfax County, Virginia. After retiring she became a private consultant and an authorized K-12 ESRI instructor. She has consulted for various universities and is an adjunct instructor at James Madison University and Towson University. Robert Kolvoord is a professor of integrated science and technology at James Madison University (JMU). His main research interests are in the use of geospatial technologies in K-12 classrooms. He has administered a variety of professional and curriculum development grants and workshops to help teachers bring these technologies to their classrooms. Prior to coming to JMU, Dr. Kolvoord worked at the University of Arizona where he was a founder of the nonprofit Center for Image Processing in Education.