I really enjoyed your map lesson, I'm going to use it with my students to introduce mapping in our next unit. Wow, reading your journal, you really do have a quick turnaround....last year's burning question for the expedition taking off so soon after the orientation was "how much underwear to bring"...hope that gets answered for you, too! Have a great trip, glad we will be able to follow it with my earth sci class. When I teach Phys Sci next spring, I'll bet there will be some things I can use there,as well!