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  All Sites - 1258 items found, showing 351 to 400

  1. Geometry - Paul Bourke
    Explorations and renderings of various surfaces and forms, including knots, surfaces, 3D shapes, curves, algorithms, tilings, plexagons, etc. Formulae for Quadrics (Surfaces of degree 2); Superellipse and superellipsoid; SuperToroid (3D); Plexagons; Hexagonal ...more>>

  2. Geometry Playground - Daniel J. Heath, Joshua Jacobs
    Geometry Playground is a straightedge and compass construction tool for multiple geometries. The Java code is open-source, and the accompanying wiki includes hands-on discovery activities. ...more>>

  3. geometry-pre-college - Math Forum
    A discussion group accessible as a Web-based discussion, a mailing list, or a Usenet newsgroup, for discussions concerning school geometry curricula, teaching geometry, new software and texts, problems for students, and supplementary materials such as ...more>>

  4. geometry-puzzles - Math Forum
    A discussion group accessible as a Web-based discussion, a mailing list, or a Usenet newsgroup, for interesting problems and conundrums that require only a knowledge of elementary geometry, and discussions of solutions. Read and search archived messages; ...more>>

  5. Geometry Reference Sheets & Mnemonics (S.M.A.R.T.) - Math Share Shop
    Methods of proving two angles congruent; Two angles are congruent, if...; Two triangles are congruent when...; When proving triangles congruent...; Right triangles; Quadrilaterals; Formulas of the Area; Summarizing geometry of the Triangle; Coordinate ...more>>

  6. The Geometry Section (Zona Land) - Edward A. Zobel
    Fractals (fractal tree, VRML fractal monoliths), common shapes (circle, rhombus, trapezoid), areas and volume (box, cylinder, box with cylindrical hole), coordinate geometry (VRML (x, y, z) Axes and Planes Worlds), and points, lines, and planes (symbol ...more>>

  7. Geometry (Seeing is Believing) - De Silva, D'Andreti; ThinkQuest 1997
    A geometry tutorial, comprising: the basic building blocks of geometry; segments and rays; angles; parallel lines; triangles; polygons; right triangles (Pythagorean theorem); geometric inequalities; ratios, proportions and similarities; trigonometry; ...more>>

  8. Geometry Then and Now - Jordana Wiener; Tufts University
    Final paper for a Greek Science course at Tufts. Introduction: Although present day society is technically dimensions ahead of the ancient Greeks, we owe much of our progress to them. What is amazing is not so much that we are more scientifically advanced ...more>>

  9. Geometry Web Page - Ephraim Fithian; Kutztown University
    Sixteen geometry activities: Tangrams; Golden Ratio; Geoboard; Polygons; Symmetry; Constructions; Polyominoes and Polyiamonds; Star Polygons; Special Points in Polygons; Polygon Tessellations; Kaleidoscope Tessellations; Escher Tessellations; Space Cubes; ...more>>

  10. geometrywiz - Teresa Ryan
    Blog subtitled "learning about learning and teaching mathematics." Posts, which date back to November, 2013, have included "Reflecting on Learning Objectives," "Reflections and Inquiry," "What Started as Tough, Becomes Good," "Refresh, Reflect, and Reinvent," ...more>>

  11. George Washington School Copy Book - Library of Congress
    Scans of a school copy book handwritten by the future first U.S. President in 1745, when 14 or 15 years old. Together with a second book, these reveal geometrical definitions and problems, surveying, mensuration, multiplication and division, simple interest, ...more>>

  12. Gerry Stahl's Website - Gerry Stahl
    Publications, teaching, research, and more by the author of Constructing Dynamic Triangles Together, Group Cognition, and Translating Euclid, among others. The founding Executive Editor of the International Journal of CSCL (ijCSCL), Stahl has researched ...more>>

  13. Getsmarter.org - Council on Competitiveness
    A free web site designed to help improve math and science education. Interactive quizzes, games, and tutorials allow students to learn more about specific topics and improve their skills. MSTV, a series of interactive modules, shows how math and science ...more>>

  14. Get the Turtle to the Pond: Developing Geometry Concepts Using Computer Programming Environments (i-Math Investigations) - Illuminations; National Council of Teachers of Mathematics (NCTM)
    An online, interactive, multimedia math investigation. Computer programming environments can be used to help children understand geometric concepts. The interactive tool in this i-Math investigation illustrates how LOGO can be used to foster creative ...more>>

  15. GEUP - Ramón Alvarez
    Interactive geometry software. Capable of handling transformations, analytic geometry, polar and cartesian coordinates, and other topics. Applicable to mechanics, optics, drawing and graphic design. Uses macros to speed construction process. Requires ...more>>

  16. GIFsmos - Lusto, Chris; Luberoff, Eli; and Merrill, Jason
    Takes any animated Desmos plot and converts it into a dynamic graphic. GIFsmos lets you determine the size of the resulting gif animation, and toggle its frame interval from 0.1 to 1.0 seconds. ...more>>

  17. GirlTECH - Cynthia Lanius; Center for Research on Parallel Computation (CRPC)
    GirlTECH was a teacher training and student council program that encouraged young women to pursue careers in mathematics and science, offering intensive technology training to explore innovative teaching strategies for gender equity in the classroom through ...more>>

  18. Glitter Trap (MatheMUSEments!) - Ivars Peterson (Math Muse for Kids)
    You've probably looked at your distorted reflection in a shiny holiday ornament, but you may be surprised to learn what the reflections in a pyramid of silvery balls are like. The behavior of light in a stack of mirrored balls can help mathematicians ...more>>

  19. Glossary of Mathematical Formulas - Keiichi Suzuki
    This glossary of math terms and formulas, succinct enough for viewing on handhelds and other smaller screens, covers geometry, set theory, algebra, abstract algebra, trigonometry, vectors, matrices, calculus, complex functions, special functions, orthogonal ...more>>

  20. GoGeometry from the Land of the Incas - Antonio Gutierrez
    Mixing dynamic geometry, animations, science, and Incan history, this Peruvian site offers geometry problems involving circles and triangles, with proofs: Poncelet, Napoleon, Eyeball, Steiner, Carnot, Sangaku, and the Butterfly Theorem. Also, Incan Geometry ...more>>

  21. The Golden Ratio - Andi, Mel, and Shuj
    An introduction to the golden ratio, also known as phi: its connection to the Fibonacci sequence, related constructions (star, line segment, rectangle, and spiral), and connections to biology, history, and aesthetics. Site also includes a glossary and ...more>>

  22. Good Calculators
    Online calculators for determining gradients, slopes, percentages, forces, factoring, fractions, powers, square roots, velocities, statistics, standard deviations, spring helical compressions, torques, areas, volumes, ratios, conversions, and more. ...more>>

  23. Got Math? - Dave Radcliffe
    Blog by a community college math instructor and self-described "GeoGebra fanatic." Posts, which date back to December, 2010, have included "Stacking cannonballs," "Counting with Integrals," "A Paradoxical Dissection," "Gelfand's Question," "Imagining ...more>>

  24. GRACE: Graphical Ruler and Compass Editor - Hertzmann, Warren, Goldan, Felleisen; Dept. of Computer Science, Rice University
    Interactive Euclidean Geometry: using a Java applet, this course focuses on a classical topic: the ruler and compass constructions of Euclid. GRACE allows the student to define constructions and their associated proofs interactively. This site contains ...more>>

  25. Grades 6-7: Lesson Plans (The Lesson Plans Page) - Kyle Yamnitz, Univ. of Missouri
    A searchable archive of lesson plans for arithmetic, patterns, estimation, graphs, place value, fractions, measurement, number sense, geometry, and many more. Includes suggestions for games, manipulatives, calculators, and spreadsheets. ...more>>

  26. Grand Illusions - Hendrik Ball
    A "site for the enquiring mind, with optical illusions, scientific toys, visual effects, and even a little magic." Includes a number of feature articles on vision, photography, mirrors, optical toys, movies, etc. See, in particular, the geometrical optical ...more>>

  27. Graphe Easy - Olivier Ansquer
    Feature-rich yet easy-to-use 2d graph-plotting Windows software. Demo version available. It allows users to draw many graph types (Cartesian, polar, parametric coordinates) and many other graphs such as conics, integrals, inequalities, or sequences. It ...more>>

  28. Graphing Calculator 3D - Runiter Company
    Makers of visual, tutorial, and computational software such as Smart Math Calculator, Graphing Calculator 3D, A&G (algebra and geometry) Grapher, Statistics Problem Solver, and Calculus Problem Solver. ...more>>

  29. Graphing Calculator - Pacific Tech
    Graphing Calculator is a tool for quickly visualizing math: type an equation and it is drawn for you without complicated dialog boxes or commands. Graphing Calculator 2.2, a commercial release, features symbolic and numeric methods for visualizing two ...more>>

  30. GraspMath - Summit Interactive
    Interactive CD and Video Courses to purchase: Elementary Math, Algebra, Geometry, High School Exit Exam Prep, Trigonometry, Calculus, TI Calculators and more. Stand alone math courses with assessments and guides; remedial math program supplements; tutorials ...more>>

  31. Great Math Programs - Xah Lee
    A listing about 40 excellent recreational math programs for Macintosh that do: polyhedra and Rubic cubes, curves and surfaces, fractals and L-systems, tilings and symmetry, game of hex and game of life, chess and five-in-a-row, peg solitare and polyominos, ...more>>

  32. The Great Paper Airplane Challenge (TEAMS) - Jeannie Toshima; TEAMS Distance Learning, Los Angeles County Office of Education
    Use origami to build the farthest flying airplane, and win the challenge. TEAMS looked for the farthest flying airplanes throughout the nation - the best from each class. Students sent in the written directions (diagrams were acceptable) for folding ...more>>

  33. Greek Mathematics and its Modern Heirs - SunSITE's Vatican Exhibit; Library of Congress
    Classical roots of the scientific revolution. An essay on the history of Greek Math, with sample math problems. Covers Euclid's Elements and Optics, Archimedes' Works, Piero della Francesca's De quinque corporibus regularibus, and links to Ptolemy's Geography ...more>>

  34. The Grey Labyrinth - Kevin Lin
    A collection of mind-benders in math and logic. When a solution to one puzzle is posted, another solution-less puzzle is added. With an archive of past puzzles, links to other puzzle-related sites, and a bibliography of works that inspired this site. ...more>>

  35. Growth Creature Lab - Mike Riedy
    This lab ties the growth of creatures into the Fundamental Theorem of Similarity and extends it to logistic growth. The lab shows students how to collect data from the growing creatures and how the data apply to geometry. Sections of the lesson include: ...more>>

  36. GSP Lessons - Jim Wilson; Dept. of Mathematics Education, Univ. of Georgia
    Sketches, using The Geometer's Sketchpad, illustrating a dozen problems in plane geometry, many with hints and solutions provided. ...more>>

  37. Habits of mind: an organizing principle for mathematics curriculum (Connected Geometry) - Cuoco, Goldenberg, Mark; Education Development Center, Inc. (EDC)
    A curriculum the goal of which is not to train large numbers of high school students to be university mathematicians, but rather to allow high school students to become comfortable with ill-posed and fuzzy problems, to see the benefit of systematizing ...more>>

  38. Hales Proves Hexagonal Honeycomb Conjecture (Math Chat) - Frank Morgan, MAA Online
    Professor Thomas Hales of the University of Michigan has proven the Hexagonal Honeycomb Conjecture, which says that regular hexagons provide the least-perimeter way to enclose infinitely many unit areas in the plane. This may partly explain why hexagons ...more>>

  39. The Handley Math Page - John Handley High School Mathematics Department
    David Pleacher posted Problems of the Week in his classroom every week since 1968, and posted them online -- with solutions and names of students who correctly solved them -- from 1998 until his retirement in 2006. See also his lesson plans and worksheets, ...more>>

  40. The handling of geometry definitions in school textbooks - Michael de Villiers; Mathematics Education, Univ. of Durban-Westville, South Africa
    Some historical background and a discussion of the value of students constructing their own understanding of mathematical proofs; misconceptions that arise from ready-made definitions; and the advantage of a constructivist approach, which allows pupils ...more>>

  41. Hands-on Computer Activities For Teaching Math: Grades 3-8 - Beverly Burnley
    Purchase or request an evaluation copy (if you're an educator) of this book. Publisher's description: "Featuring more than 100 step-by-step activities that use common computer programs, such as Microsoft Word and Paint, to model concepts in five basic ...more>>

  42. Hands-On Math Activities for Grades 4-6 - Wendy Sawatzky
    Designed for a grade 5 class, but adaptable for grades 4 or 6. Teacher notes and ready-made task cards are available for each activity. Topics include numbers and operations, geometry, problem solving, measurement, data management and analysis. ...more>>

  43. Hands-on Math: Activities for the Elementary Classroom - Janine Parker
    Lesson plans for children in grades one through six about topology, number patterns, and geometry. Handouts for each lesson may be downloaded in PostScript form or as GIF files, and a zipped DOS program to display Platonic solids, Archimedean solids, ...more>>

  44. handsonmath.com - Charles Gronberg
    Hands-on geometry model building materials to purchase, tested and test marketed by the American Association for the Advancement of Science in the late 1990s with the intention of targeting at-risk middle-school students (minorities and girls). The ...more>>

  45. Hankies, Snarks, and Triangles - Ivars Peterson (MathLand)
    Both Alice's Adventures in Wonderland and Through the Looking-Glass and What Alice Found There contain many examples of Dodgson's passion for mathematical games, puzzles, logic paradoxes, riddles, and all sorts of word play. Indeed, his fascination with ...more>>

  46. Harnessing Technology to Serve Adult Literacy: Math - David J. Rosen
    Frequently Asked Questions on how to help adult literacy education (ABE/GED/ESL/ESOL) teachers and learners use computers, television, audio and video cassettes, and other electronic technology to solve learning and instructional problems: "Our students ...more>>

  47. Harold Reiter's Home Page - Harold Reiter, Department of Mathematics, University of North Carolina at Charlotte
    Freely downloadable puzzles and problems from the founder of teachers circles and math clubs in Charlotte and Mecklenburg, longtime writer of MathCOUNTS questions, and member of the ETS/College Board CLEP (College-Level Examination Program) Pre-calculus ...more>>

  48. Harry O'Malley
    Blog by a math teacher who believes "... that learning to use mathematics changes people's lives in profound and valuable ways," and describes himself as "obsessed with making that happen for people. I am convinced that recent advancements in technology ...more>>

  49. Harvard-MIT Math Tournament - Early, Owen
    The Harvard-MIT Math Tournament is an annual math tournament for high school students. Categories of tests typically include algebra, calculus, combinatorics (formerly "advanced topics"), geometry, general, oral, team, and guts; mini-events include Buzz ...more>>

  50. HCPSS Family Mathematics Support Center - Howard County Public Schools
    K-12 math lessons, activities, enrichment tasks, vocabulary lists, and more, organized by grade level and academic quarter. Designed for parent and students, the Maryland school district collected these resources from third parties such as LearnZillion, ...more>>


 
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