Geometry
- Coordinates and similar and congruent figures
Definitions and explanations from the Math League.
- Erich’s
Packing Center
Erich enjoys packing geometric shapes into other geometric shapes:
triangles in squares, circles in triangles, squares in circles,
and more, with illustrations, equations, and indications of
packings that have been proved optimal.
- Euclid’s Elements
The reason for this site is to rekindle an interest in the Elements,
and to show how Java applets can be used to illustrate geometry.
- Four
Types of Symmetry in the Plane
This Math Forum site offers brief explanations of rotation,
translation, reflection, and glide reflection.
- Geometry
Center
The gallery of Interactive Geometry will open your eyes to such
things as Projective Conics, Penrose tilings, Hyperbolic planes,
Orbifold pinball, and much more. Keywords Hyperbolic plane,
Lattice, Nonperiodic tilings, Numerical integration, Orbifold
Pinball, Pascal`s theorem, Penrose tilings, Projective conics,
Rainbows, Tilings All the formulas you've ever wanted. There
are also plenty of great teacher resources, pictures describing
geometrical functions, and computer programs for geometry.
- Geometry
in Action
Here are areas in which ideas from discrete and computational
geometry - mainly low-dimensional Euclidean geometry - meet
some real world applications. There are brief descriptions of
those applications and the geometric questions arising from
them, as well as pointers to Web pages and other sources of
further information.
- Geometry
Junkyard
Links to various geometric sites.
- Hollister
"Hop" David's Escher-like tiles
- Hollister "Hop"
David's geometric art work
This site is amazing! The images of how certain numbers,
and trig. proofs are shown, as well as links to a ton of other
neat stuff.
- Mathematics and
Molecules
MathMol provides students, teachers, researchers and the general
public with information about the rapidly growing fields of
molecular modeling and related areas. It provide K-13 students
and teachers with basic concepts in mathematics and their connection
to molecular modeling. Keywords Chemistry, Geometry, Molecular
modeling, Molecules, Water molecules
- Mathematical
Art of M.C. Escher
- Math Forum - Geometry
Problem of the Week
- M.C. Escher:
Artist or Mathematician?
- M.C.
Escher: Centennial Celebration Page
This site contains an Escher biography, exhibits, books, and
school resources.
- M.C.
Escher: The Poet of the Impossible
- Motions in the plane
- Native American Geometry
Explore an elegant proportional geometry based on the circle,
and used by Native Americans for over 2000 years
- Polyhedra
in the Classroom
- Rigid Motions in the Plane
- Shape
and Space in Geometry
Geometry and spatial sense, with background on why this is important
and how it is addressed in the standards. Interactive web activities
are included for both space and shape.
- Soma Cube
Page: Seven 3 dimensional pieces which can be put together to
form a cube.
It is considered "one of the simplest and most elegant of all
three-dimensional put-together puzzles."
- Symmetry and
Pattern: The Art Of Oriental Carpets
- Symmetry
and the Shape of Space
A very simple site that teaches the mathematics of symmetry,
step by step.
- Symmetry and Tessellations: Math Library
- Tessellations
This site spotlights the work of the artist Robert Gathauer
but also has lessons on tessellations.
- Tessellation Homepage
- Tessellation
Resources
- Tessellation
Tutorials and templates for making your own tessellations produce crystal and molecular models, parametric surfaces and
several forms of sphere tessellations.
- Totally tessellated
This site offers information on the history of tessellations,
M.C. Escher, and mosaics and tiling.
- Tour of Symmetry
Groups
- Virtual
Polyhedra
Want to learn what an icosahedron is? Or the 53rd stellation
of the icosahedron? Explore the complex and beautiful world
of many-sided geometric figures
- Wallpaper
Groups (Plane Symmetry Groups)
This site offers interesting examples of transformations in
a plane.
- World of Escher
Although the site's main purpose is the sale of Escher products,
it provides background information on the artists works.