This is a video introduction to www.historypin.com which might just prove to be an very useful and important project. It's historical geography powered by colloborative mapping that is infused with social media dynamics. Backed by Google, they are geotagging old photos to recreate the historical geographies of all places and comparing them with current streetview images. You can search by topic, place or date...this has the potential to be very big.
Long-time educator Barbaree Duke has been integrating GIS into her classroom since 2000. As a staffer for the National Council for Geographic Education, she actively advocates the use of GIS for geography education in the K-12 environment.
GIS is not just for the specialists producing the data. Exploratory projects can get students to wanting to ask questions and focus their spatial thinking skills