• The Folded Circle
  • Van Schooten's Ellipse
  • Congruent Triangles
  • Concentric Circles
  • The Taut String
  • Van Schooten's Parabola
  • The Expanding Circle
  • The Hanging String
  • The Taut String, Part 2
  • Van Schooten's Hyperbola
  • Congruent Triangles, Part 2
  • Pantograph of Sylvester
  • The Limacon
  • An Even Split
  • A Vector Approach to Simultaneous Equations
  • A Tangent Teaser
  • Geometer's Sketchpad Labs by Mike Riedy HS Img
    ADD. KEYWORDS: Rotation & Translation Exploration, Cycloid, Area of a Parallelogram, Area of a Rectangle
  • JAVA Gallery of Geometric Algorithms G-P Java
    ADD. KEYWORDS: Delaunary Triangulation, Edge Matching, Point Filter
  • Java Geometry Explorer HS Int Java
    ADD. KEYWORDS: Art, Cardioid, Nephroid, Ranunculoid, Chords
  • JAVA KALI HS Int Java
    ADD. KEYWORDS: Wallpaper groups, Frieze and Rosette Groups
  • JavaSketchpad HS Img
    ADD. KEYWORDS: Software, WWW, Geometer's Sketchpad, Gallery
  • Jim Plank's Origami Page HS Img Lnks
    ADD. KEYWORDS: Dodecahedrons, Tetrahedrons, Octrahedrons, Snub Cube, Icosahedron, Polyhedrons, Rhombicuboctahedron, Modular Origami.
  • Jim Wilson's Home Page HS Img
    ADD. KEYWORDS: Articles, Geometer's Sketchpad, Capturing Area and A Solution, Orthotravels, Tangents Problem, Explorations with Heron's Formula, Witch of Agnesi, GLaD Construction, Ratio Result for Triangles, Partitioning a Line Segment
  • The Kepler Conjecture G-P Lnks
    ADD. KEYWORDS: Sphere packings, Articles, Software, Mathematica
  • Klein Bottle HS Mov
  • Kwanzaa Math: The Mkeka K6
    ADD. KEYWORDS: Lesson Plan
  • Learning Geometry HS Int Java
  • Manipula Math with JAVA HS Int Java
  • Math Forum - K-12 Geometry K6 Lnks
    ADD. KEYWORDS: Classroom materials, software, newsgroups
  • Math Forum - College Level Geometry UD Lnks
    ADD. KEYWORDS: Classroom materials, software, newsgroups
  • Math Forum - Advanced Geometry UD Lnks
  • Math Quilts HS Img
    ADD. KEYWORDS: Tessellations, Perspective and Fractals
  • A Mathematical Approach to Slicing Doughnuts LD Img
  • Modelling LD Img
    ADD. KEYWORDS: Polygonising a scalar field, Surface of the Human Cortex, Scientific visualisation, Delaunay triangulation, Data reduction and filtering for terrain modelling, Fractal terrain modelling, Implicit surfaces, Coordinates for regular polyhedra, Vision3D manual
  • Museo Universitario di Storia Naturale e della Strumentazione Scientifica - Mathematical Laboratory HS
    ADD. KEYWORDS: Mathematical Drawing Machines, Pantographs, Curvegraphs
  • The Nine Point Circle LD Java
    ADD. KEYWORDS: Geometry, interactive pages
  • A Parade of Surfaces - A Pictorial Introduction To Singularity Theory UD Img
    ADD. KEYWORDS: Stable Maps and Unfoldings, Singularities of Maps from R2 to R3, Duals of Surface, Binary Differential Equations, Software.
  • Pavilion of Polyhedra LD Img
  • Penrose Tilings UD Java
  • The Platonic Solids HS Java Img Int
    ADD. KEYWORDS: Euler's Polyhedron Theorem, Dodecahedron
  • Poincaré Disk UD
    ADD. KEYWORDS: Geometry Sketchpad Scripts
  • Polyhedra HS Java Img Int
    ADD. KEYWORDS: Maple, VRML, Regular Polyhedra, Duality, Facet, Archimedean Solids, Stellate, Transformation
  • Polyhedra Collection HS Img Int
    ADD. KEYWORDS: Uniform polyhedra, Duals, Johnson's solids, Stellations of Icosahedron, Stellations of deformed dodecahedron, Spherical Platonic polyhedra, Polyhedral Kaleidoscope, Symmetrical compounds, VRML, Interactive building of polyhedra compounds
  • Polyhedral Solids HS Img
    ADD. KEYWORDS: Platonic Solids, Archimedean Solids, Kepler-Poinsot Polyhedra, Compound Solids, Stellated Polyhedra
  • Polyominoes K6
    ADD. KEYWORDS: Lesson Plans
  • Probability/Patterns Learning Units K6
    ADD. KEYWORDS: Lesson Plans
  • Ptolemy's Table of Chords HS
  • Pythagoras' Theorem HS Java
    ADD. KEYWORDS: Geometry, history, interactive pages
  • Pythagorean Theorem HS Java
    ADD. KEYWORDS: 8 Proofs, Bibliography
  • Quasicrystals UD Img Java
    ADD. KEYWORDS: Tilings, Symmetry, Bibliography
  • Seventeen Kinds of Wallpaper Patterns UD Img
    ADD. KEYWORDS: Group Theory
  • SMILE Program Mathematics Index K6
    ADD. KEYWORDS: Lesson Plans
  • Steiner - Lehmus Theorem HS Java
  • Surfaces G-P Img
    ADD. KEYWORDS: Minimal Surfaces, Constant Mean Curvature (CMC) Surfaces, Level Surfaces
  • Symmetry and Pattern - The Art of Oriental Carpets HS Img Lnks
    ADD. KEYWORDS: Glossary, Bibliographies, Student Projects, Asymmetry and Symmetry-Breaking, The Four Basic Symmetries, Border Patterns, Field Patterns, Grids and Tessellations
  • Tangrams K6 Img
    ADD. KEYWORDS: Geometry, spatial-visualization skills, congruency, similarity, symmetry, area of polygons
  • Tangrams - An Introduction K6 Img
    ADD. KEYWORDS: Bibliography, Puzzles
  • A Teacher's Guide to Building the Icosahedron as a Class Project K6 Img
  • Technology in the Geometry Classroom Course Materials HS
    ADD. KEYWORDS: Course Materials, Geometer's Sketchpad, Monge's Theorem, Peaucellier's Linkage, Dynamical systems lab, Symmetry and Patterns, Wallpaper Patterns, Orbifolds, Videotapes, Software, Student Projects
  • Tessellations Project K6 Img
  • Tiling Dynamical Systems UD Img
    ADD. KEYWORDS: Prototiles, Shift Dynamical Systems, Penrose
  • Topology Games K6 Java Int
    ADD. KEYWORDS: Torus, Klein Bottle
  • Transformations HS Img
    ADD. KEYWORDS: Translations, Rotations, Reflections, Glide Reflections, Symmetry, Frieze Patterns, Escher
  • UIMATH.grafiXlab LD Img Mov
    ADD. KEYWORDS: LATERNA matheMAGICA, Cellular Semiotics, Software, Courses, Homotopies
  • Understanding Projective Geometry UD
    ADD. KEYWORDS: Klein Bottle
  • The Uniform Polyhedra UD Img
    ADD. KEYWORDS: Mathematica, Wythoff Symbol, Regular and Quasi-Regular Polyhedra, Semiregular Polyhedra, Even-Faced Polyhedra, Snub Polyhedra, Great Dirhombicosidodecahedron
  • Virtual Polyhedra HS Img Int
    ADD. KEYWORDS: VRML, Platonic Solids, Kepler-Poinsot Polyhedra, Archimedean Polyhedra, Prisms and Anti-Prisms, Archimedean Duals, Quasi-Regular Polyhedra, Johnson Solids,Pyramids, Dipyramids, and Trapezohedra, Compound Polyhedra, Stellated Polyhedra, Compounds of Cubes, Convex Deltathedra, Zonohedra, Uniform Polyhedra, Stellations of the Icosahedron, Glossary
  • Visual Symmetry K6 Img
    ADD. KEYWORDS: Tilings, Mathematica
  • Wallpaper Groups UD Img
    ADD. KEYWORDS: Plane Symmetry Groups