I've heard parents complain "my daughter makes collages from magazine
clippings in her high school geometry class instead of learning real
math". Some of the lesson plans listed here are like that,
but are perhaps appropriate as auxiliary material. The better plans
here teach some real mathematics as the students perform their projects.
I haven't made much attempt to go through the rest of the junkyard
to find appropriate teaching resources that aren't already arranged into
lesson plans; you'd be better off doing it yourself.
Border
pattern gallery. Oklahoma State U. class project displaying examples
of the seven types of symmetry (frieze groups) possible for
linear patterns in the plane.
Cinderella
multiplatform Java system for compass-and-straightedge construction,
dynamic geometry demonstrations and
automatic theorem proving.
Ulli Kortenkamp and Jürgen Richter-Gebert, ETH Zurich.
Geometry and the Imagination in Minneapolis.
Notes from a workshop led by Conway, Doyle, Gilman, and Thurston.
Includes several sections on polyhedra, knots, and symmetry groups.
Non-Euclidean
geometry with LOGO. A project at Cardiff, Wales, for using the LOGO
programming language to help mathematics students visualise
non-Euclidean geometry.
Occurrence of
the conics.
Jill Britton explains how the different conic curves can all be formed
by slicing the same cone at different angles, and finds many examples of
them in technology and nature.
