Resource: Geometry from the Incas

[Sent to me by Antonio G]

I thought you might be interested to visit Geometry Step by Step from the Land
of the Incas at:  

http://agutie.homestead.com <http://agutie.homestead.com/>  

This website provides an eclectic mix of sound, science, and Incan
history intended to interest students in Euclidean geometry. Recent
additions include Simson Line (proof of Simson line), The Raft of the
Medusa (problem solving with fractals and animation), Archimedes and the
Rhombicuboctahedron (Archimedes the Geometer), Sierpinski Triangle and
Machu Picchu (fractal illustration), Johnson's Theorem (three equal
circles pass through a common point), Varignon and Wittenbauer
Paralellograms (quadrilateral: midpoints and trisection points of the
edges), Van Aubel's Theorem (quadrilateral with squares), Langley
problem, Butterfly theorem, Sangaku problem, Morley theorem and more.

I welcome all of your comments and suggestions.


Steve
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