Math by Subject
K12 Topics
 algebra
arithmetic
calculus
discrete math
geometry
pre-calculus
prob/stat
Advanced Topics
analysis
calculus
diff. equations
game theory
discrete math
geometry (coll.)
geometry (adv.)
linear algebra
modern algebra
num. analysis
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 Selected Internet Geometry Sites
 Corner for Interactive Geometry Software (CIGS)
- The Math Forum
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The main Math Forum page for resources devoted to the support of teaching with geometry software, especially dynamic, interactive software such as
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- Discussions
- Math Forum
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The Math Forum's discussions include mathematics and math education-related newsgroups, mailing lists, and Web-based discussions. Read recent and
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- Erich's Packing Center
- Erich Friedman
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A huge collection of packing problems, each explained with graphics. 2D examples include Triangles in Squares, Circles in Squares, Squares in Squares,
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- Gallery of Interactive On-Line Geometry
- The Geometry Center
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Twelve interactive online geometry programs: WebPisces (compute implicitly defined curves in the plane); Build a Rainbow (a lab that examines a
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- Geometry and the Imagination
- Conway, Doyle, Gilman, Thurston; The Geometry Center
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A collection of handouts for a two-week summer workshop entitled 'Geometry and the Imagination', led by John Conway, Peter Doyle, Jane Gilman and Bill
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- The Geometry Center
- University of Minnesota
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The Center for the Computation and Visualization of Geometric Structures: an NSF Science and Technology Research Center. The Center has a unified
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- Geometry In Action
- David Eppstein, Theory Group, ICS, UC Irvine
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A collection of applications of computational geometry: areas in which ideas from discrete and computational geometry (meaning mainly low-dimensional
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- The Geometry Junkyard
- David Eppstein, Theory Group, ICS, Univ. of California at Irvine
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A collection of usenet clippings, web pointers, lecture notes, research excerpts, papers, abstracts, programs, problems, and other stuff related to
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- Math Lessons
- Cynthia Lanius
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A variety of algebraic and geometric projects and puzzles that help students find mathematical patterns and formulas. The Million $ Mission explores
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- NonEuclid
- Joel Castellanos, Joe Dan Austin, Ervan Darnell
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A Java program offering straightedge and compass constructions in hyperbolic geometry for high school and college students. A compressed version for
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- Pavilion of Polyhedreality
- George W. Hart
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A page of images of polyhedra from the author of Multidimensional Analysis and the Encyclopedia of Polyhedra. Constructions from wood, paper, paper
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- Preuve Proof Prueba
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A newsletter in French, Spanish, and English, the theme of which is teaching and learning mathematical proofs. Includes an extensive bibliography
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- Topology and Geometry Software: Fun and Games
- Jeff Weeks
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Fun math toys for all ages, from the author of Exploring the Shape of Space (grades 6-10) and The Shape of Space (grades 12-16). Applets and software
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- Triangle Centers
- Clark Kimberling; Dept. of Mathematics, Univ. of Evansville, Evansville, IN
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A listing, with description and illustration, of 20th-century triangle centers (including: Schiffler Point, Exeter Point, Parry Point, congruent
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- Virtual Polyhedra
- George W. Hart
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A growing collection of over 1000 virtual reality polyhedra to explore, complementing Hart's Pavilion of Polyhedreality. Includes instructions for
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- A Visual Dictionary of Special Plane Curves
- Xah Lee
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Materials that demonstrate interesting properties of plane curves visually. Many concepts or properties of plane curves, such as cusp, tangent,
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- For more, search or browse Geometry in the Forum's Internet Mathematics Library.
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Selected K12
Geometry Elsewhere on the Internet
The Math Forum is a research and educational enterprise of the Drexel University School of Education.