PCMI, Summer 2004
High School Teacher Program

Three-Dimensional Ring
Step-by-step directions by Marcia Bollwage learned at a Teen Arts Festival in Mercer County, New Jersey

[download PDF file]

Take one square of paper and fold it in half.
Crease to make a crisp fold.

On one side, fold the corners to make two triangles.

(note: The closer the edges of the triangles are, the better.)

Here you can see the two triangles.

page 1 || page 2 || page 3 || page 4

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IAS/Park City Mathematics Institute is an outreach program of the Institute for Advanced Study, 1 Einstein Drive, Princeton, NJ 08540.
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With program support provided by Math for America

This material is based upon work supported by the National Science Foundation under Grant No. 0314808 and Grant No. ESI-0554309. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.