Free - Map Adventures, with 7 lessons, is appropriate for grades K-3. Students will learn basic concepts for visualizing objects from different perspectives and how to understand /and use maps. Be sure to grab the free 15 printables here too that go along with these 7 lesson plans. http://egsc.usgs.gov/isb/pubs/teachers-packets/mapadventures/repro.html
Value Play creates Beautiful Effects: In Lois Dunten’s original mariner’s compass design, she features middle value hues. Joen Wolfrom has a new online color class, Color Play for Quilters, at Craftsy, if you are interested in learning more about color.