Introduction -- The Nature Of Spatial Thinking -- Spatial Thinking In Everyday Life, At Work, And In Science -- Teaching And Learning About Spatial Thinking -- Responding To The Need For Spatial Thinkers -- Tools For Thought: The Concept Of A Support System -- High-tech Support Systems For Spatial Thinking -- An Assessment Of Gis As A System For Supporting Spatial Thinking In The K-12 Context -- Gis As A Support System For Spatial Thinking -- Conclusions And Recommendations -- The Spatial Thinker. Committee On Suport For Thinking Spatially: The Incorporation Of Geographic Information Science Across The K-12 Curriculum, Geographical Sciences Committee, Board On Earth Sciences And Resources, Division On Earth And Life Studies, National Research Council Of The National Academies. Includes Bibliographical References (p. 243-255) And Index. Also Issued Online.