This week, an illustration that explains the depths of GIS caught my attention. What a clear way to explain how a map is created using many different data sources!  It also intrigues me to dig deeper to learn more about GIS, something you may want to do in your classroom this year. The NatGeoEd website is full of resources that explain GIS (or geographic information systems) and resources … Continue reading Mapping Monday: The Depths of GIS