Meeting National Geography Standards, Walch Publishing's new "Critical Thinking about Geography: United States, Canada & Greenland" series covers political maps, map projections, latitude & longitude, physical, economic, climate, historical, and highway maps, as well as connections between settlement and climate, culture and geography, and the effect of human activity on salmon populations, all using maps within the designated area. 30 maps are provided, with 15 accompanying lessons, each designed to take 20-30 minutes. Teacher instruction pages include background information, answers to the student activity sheet, suggestions for discussion, and extension/enhancement activities. A fully searchable CD-ROM of the contents is also included. 79 reproducible pages, softcover. Grades 6-12.