Home Back to the Challenge Answer Try These Think About This... ResourcesTry Another Challenge  
Answer
Figure This!

Unfold an envelope at the seams. If you wanted to make many envelopes from this pattern our of a large piece of paper, would there be much waste?

Would a different shape reduce the waste?

Home  ·  Back to the Challenge иаAnswer иаTry These иаThink About This ·   Did You Know?
Resources иаTry Another Challenge иаChallenge Index иаMath Index
Printing the Challenges · En Español · Family Corner иаTeacher Corner иаAbout Figure This!
Purchase the CD
©2004 National Council of Teachers of Mathematics
Web site and CD-ROM design/production
© 1999-2004 KnowNet Construction, Inc.