Studying the Iditarod is a good way in to: geography of Alaska, history of the gold rush, and methods of dealing with disease outbreaks--such as diptheria--in the early part of the century. Here is a helpful list of terminology related to the grueling 1,150 mile race. We also enjoy canine blogger Zuma's reports from the trail. And, also from the official Iditarod site is a list of children's and other books about the race.
If you are interested in lesson plans from a teacher on the trail, click here. I'm specifying the links because these are the least ad-infested ones we could find from the main site.
To track progress of the mushers, go to the main site and click on current standings. Go DeeDee!