This PDF file presents the full text of Understanding Geometry for a Changing World, 71st Yearbook (2009) in a downloadable file that preserves the design and layout of the book while allowing users to search and print selected pages.
Please see Related Products below for individual chapter downloads.
Please note: This product can only be purchased via NCTM’s Online catalog. Non-web payment methods, such as POs, cannot be used to purchase this item. If you have any questions please call NCTM’s Customer Service Department at 800-235-7566.
Geometry is currently enjoying a revival, partly as a result of the emergence of interactive geometry software. Articles in this yearbook examine expanding visions of geometry, the latest thinking about the development of students' geometric learning, and new perspectives on effective practices for teaching geometry in elementary through high school. The yearbook includes a CD with lessons, activity sheets, application files, video clips, and Web links.