30 August 1999 Vol. 4, No. 35
THE MATH FORUM INTERNET NEWS
Connecting Geometry - Sanders | Native American Geometry |
Math Magic - Friedman
CONNECTING GEOMETRY - Cathleen V. Sanders
http://www.k12.hi.us/~csanders/
An interactive electronic geometry course offered via the
Internet to students throughout the Hawaiian islands. During
the course Cathi Sanders, a teacher at Punahou School in
Honolulu, communicates with students through a Web page and
via e-mail.
The course uses computer technology and the Internet to
explore and discover the principles and concepts of geometry.
Students explore geometric figures using the Geometer's
Sketchpad, practice geometric skills through problem-solving
activities on paper, explore applications of geometry through
the Web, and create projects using these technologies.
Chapters include:
- Communicating in Geometry
- Symmetry and Transformations
- Theorems in Geometry
- Congruent Triangles
- Triangle Properties
- Right Triangles
- Parallel Lines and Planes
- Polygons
- Similar Triangles
- Circles
- Perimeter and Area
- Surface Areas and Volumes
http://www.k12.hi.us/~csanders/topics.html
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NATIVE AMERICAN GEOMETRY - Chris Hardaker
http://www.earthmeasure.com/
Native American geometry is a physical, proportional
geometry that originates from the circle. A growing
body of architectural and iconographic evidence suggests
that this geometry was a relatively common tradition and
has been practiced for at least 2000 years.
The site is divided into four areas: Foundations,
Anthropology, Designs, and Education; it introduces this
two-dimensional non-random geometry in a connect-the-point
format, exploring the intellectual and cultural implications
of pre-Columbian geometric traditions in the New World. It
also provides a list of European mathematical ramifications
of the designs.
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MATH MAGIC - Erich Friedman
http://www.stetson.edu/~efriedma/mathmagic/
A site devoted to original mathematical recreations. Send
your math puzzle, discovery, or observation, to the author,
or submit an answer to the problem of the month.
Past questions and solutions are archived. Examples include:
- Divisor Chains
- Integer Square Tilings
- Angle Frequencies
- Disconnected Polyominoes
- Average Arrays
- Convex Spectra
- Surround Numbers
- Palindrome Products
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