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  All Sites - 140 items found, showing 101 to 140

  1. Pascal's Triangle - Math Forum/USI
    A Web unit designed to support workshops given by the Math Forum for the Urban Systemic Initiative (Philadelphia and San Diego). Read about the history of Pascal's triangle and learn to construct it; view illustrations of number patterns to be discovered; ...more>>

  2. Pascal's Triangle: Number Patterns - Math Forum
    Some history and an interactive exploration of number patterns and an exploratory Internet Web unit for elementary, middle school, and high school, with lessons, number pattern studies, and links to relevant sites on the Web. ...more>>

  3. Peaucellier's Linkage - Evelyn Sander, for Math 5337, The Geometry Center
    Peaucellier's Linkage is a simple toy that could be constructed using straight rods attached together. The lab gives instructions for constructing and studying the linkage in Sketchpad. It then uses Sketchpad to explore the geometric properties of inversion, ...more>>

  4. Plane Geometry Web Pages - David Jaffe
    Materials from a geometry course originally taught to future middle and high school teachers. Using definitions, theorems, proofs, and examples, the site introduces mappings; isometries and similarities; angles and trigonometry; congruence and similarity; ...more>>

  5. Polyhedra Sketches - Bill Finzer, Key Curriculum Press
    Sketches showing the platonic solids in true perspective. You have control over the placement of the picture plane, the station point, and the horizon. An animation button rotates the figure. Some of the sketches show in 3D if you have a pair of 3D glasses. ...more>>

  6. PRISM-NEO: Programming Remediation and Intervention for Students in Mathematics - Near North School District, Ontario, Canada
    Hands-on Geometer's Sketchpad manipulatives--plus "some things that cannot be done by hand!" The GSP files, as well as some QuickTime movies, are organized into Grade 7, Grade 8, and Grade 9 under the following topics: area, central tendency, equations, ...more>>

  7. Problem Solving in Mathematics - Jim Wilson; Univ. of Georgia
    Problems in algebra, geometry, conversion, cryptarithm, "mean," trigonometry, and a mixture of all, many with comments and solutions, from a course given in the Dept. of Mathematics Education at the University of Georgia. The site also provides links ...more>>

  8. Professional Development Center (PDC) - Key Curriculum Press
    Professional development opportunities from summer institutes to weekend workshops for teachers across the United States, with scheduled 1-day, 3-day, and 7-day courses, as well as opportunities for custom offerings specific to district needs. In particular, ...more>>

  9. Pythagorean Theorem - Greg Huberty, Univ. of Georgia
    President James Garfield is credited with a proof of the Pythagorean theorem unlike other proofs in that it does not use squares of the sides; rather, it uses two triangles of sides a, b, and c along with a triangle with legs of c to create a trapezoid. ...more>>

  10. The Pythagorean Theorem (MSTE) - J. T. Johns; University of Illinois at Urbana-Champaign (UIUC)
    Developing the Chinese proof of the Pythagorean theorem using the Geometer's Sketchpad. Students, each using a computer, are led through it by the worksheet supplied. ...more>>

  11. Reuleaux Triangle - Paul Kunkel
    An investigation into the Reuleaux triangle and its properties. ...more>>

  12. R. S. Schaeffer - Randy S. Schaeffer, Math & Computer Science, Kutztown University of Pennsylvania
    Schaeffer teaches a course called "Methods of Teaching Secondary Mathematics." Download the lessons created by his students that call on Geometer's Sketchpad, graphing calculators, and Microsoft Excel. Lesson topics address parallel lines, box and whisker ...more>>

  13. Rungs and Vineyards - Paul Kunkel
    Investigations of two interesting visual effects seen from a moving automobile. It includes two interactive perspective drawings, and a discussion of the cylindrical and planar projections used to create them. ...more>>

  14. The Sands of Time - Troy Jones
    The author uses ridges in piles of salt to model geometric concepts. This page features an article (PDF format), PowerPoint presentation, Geometer's Sketchpad file, and textbook reference for a classroom exploration of such concepts. ...more>>

  15. Secondary Math Units - Margaret Sinclair
    Units for grades 9-12. For grades 9-10: Data Collecting in the Classroom, Algebraic Problem-solving using Spreadsheets (a unit that emphasizes moving from numerical to symbolic representation), and a newspaper review unit on the Skydome. For grades 11-12: ...more>>

  16. SketchMad - Nathalie Sinclair
    An archived resource, not currently updated: A resource center devoted to using The Geometer's Sketchpad in the classroom. Includes tips, strategies, lesson plans, and sketches for beginning and intermediate Sketchpad teachers, stories from the classroom ...more>>

  17. Sketchpad 3.0 Gallery - Finzer, Jackiw; Key Curriculum Press & The Math Forum
    A collection of sketches and scripts that show off new features of version 3 of the Geometer's Sketchpad in categories: Arcs and Architecture; Algebra and Beyond; Physics; Statistics; Curves; and Poincare Disk. ...more>>

  18. Sketchpad Activities for Young Learners: Grades 3-5 - Nathalie Sinclair
    This collection of activities for grades 3-5 offers examples of the ways in which Sketchpad can be used across the range of mathematical subject areas in the elementary curriculum. ...more>>

  19. Sketchpad Activity Center - Bill Finzer, Key Curriculum Press
    Interactive lessons for use with an early version of the Geometer's Sketchpad. Construct a fractal tree using a recursive script; use the Point on Object command to study random phenomena. These lessons have been used in Key Curriculum Press's summer ...more>>

  20. Sketchpad for Little Ones - Geri Anderson-Nielsen; Georgetown Day School
    The Geometer's Sketchpad (GSP) is a powerful tool for discovering geometric properties. The program contains a ruler, a protractor, a calculator, and a simple word processor, in addition to graphing possibilities for the Cartesian plane. The activities ...more>>

  21. Sketchpad Homework - Math 5337, The Geometry Center
    A set of classical geometry problems created to introduce and teach basic commands for using The Geometer's Sketchpad. Created for Math 5337, Technology in the Geometry Classroom, at the Geometry Center, University of Minnesota. ...more>>

  22. The Sliding Triangle - Paul Kunkel
    Investigate ellipses by tracing triangle transformations. ...more>>

  23. Statistics Sketches - Bill Finzer, Key Curriculum Press
    Three sketches illustrating geometric interpretations of statistical methods: correlation, least squares, and standard deviation. ...more>>

  24. Symmetrier, monstre & tesselationer med The Geometer's Sketchpad - Allan Bergmann Jensen, Kalundborg, Denmark
    GSP Symmetries, Patterns and Tessellations. Contains a gallery of wallpaper designs constructed using the Geometer's Sketchpad with JavaSketchpad versions to explore, an illustrated paper on "The Math About Symmetries" (in Danish), a GSP guide, a links ...more>>

  25. Tangent Circles - Paul Kunkel
    Three circles are given. How many circles can be constructed tangent to all three? How are they constructed? This lesson includes ten applets, to cover all of the special cases. Some of them are very complex. ...more>>

  26. Teacher Exchange - the Math Forum
    Web units, lessons, and activities organized by NCTM Standards and grade band level. Created by Math Forum staff members, educators, and collaborations between the two. Teachers may contribute their own lessons and ideas as well. ...more>>

  27. Technology in the Geometry Classroom - Math 5337, The Geometry Center
    Course materials developed at the Geometry Center and used for teaching pre- and in-service teachers of high school geometry interested in using technology in their classrooms (see the Summer 1996 syllabus ). Four self-contained parts: Internet Skills, ...more>>

  28. Teen Math Whizzes Go Euclid One Better - Gautam Nair, The Wall Street Journal
    The scholarly journal Mathematics Teacher has churned out some 7,500 articles published over the past nine decades. This month, Volume 90, issue No. 1 will feature a first: a formal math treatise by two high school students. A reproduction of an article ...more>>

  29. A Template for Napoleon's Theorem Explorations - Steve Weimar, with Sarah Seastone
    Some suggestions for things to investigate related to Napoleon's Theorem. Includes a sample sketch. ...more>>

  30. Tessellation Tutorials - Suzanne Alejandre
    A series of tutorials that teach students how to tessellate (somewhat in the style of the art of M.C. Escher) using HyperCard for black and white and/or HyperStudio for color, ClarisWorks, LogoWriter, templates, or simple straightedge and compass. The ...more>>

  31. Topics in Geometry - Don Shimamoto, Swarthmore College
    Six sketches related to hyperbolic geometry. One illustrates that hyperbolic reflection in the Poincare disk corresponds to Euclidean inversion. Two sketches illustrate transformations that may or may not be hyperbolic rotation and translation. One sketch ...more>>

  32. Traveling Salesman's Sketchpad - Selim Tezel
    The Traveling Salesman's Sketchpad lets you investigate the Euclidean Traveling Salesman Problem (TSP) using an interface inspired by The Geometer's Sketchpad®. The Traveling Salesman's Sketchpad facilitates algorithm and data visualization, conjecture ...more>>

  33. Using Sketchpad: Circles - Jim King, University of Washington
    A sketch illustrating families of circles orthogonal to a given circle or line, which give some motivation for the idea of reflecting a point across a line or circle. Notes on Jim King's presentation at the Sketchpad User's Group Meeting in Cincinatti ...more>>

  34. Using Sketchpad: Conics - Peter Andrews, Eastern Illinois University
    Two sketches illustrating techniques for constructing general conic sections, one on Isaac Newton's Organic Construction and one on the MacLaurin/Braikenridge construction of a general conic. Notes on Peter Andrews' presentation at the Sketchpad User's ...more>>

  35. Using Sketchpad in Calculus - Doris Schattschneider, Moravian College
    Three sketches about parametric equations of curves and a sketch about a (then) unsolved problem about perpendicular bisectors of quadrilaterals. Notes on Doris Schattschneider's presentation at the Sketchpad User's Group Meeting in Cincinatti in January ...more>>

  36. Using Sketchpad: Triangles - Mel Thornton, University of Nebraska
    A sketch about relations between the areas of certain triangles, and another about how to perform translations using only a compass. Notes on Mel Thornton's presentation at the Sketchpad User's Group Meeting in Cincinatti in January 1994. ...more>>

  37. Using the Geometer's Sketchpad - Jeremy Bartusch, revised by Tony Peressini and Tom Anderson
    An interactive tutorial on how to use the Geometer's SketchPad software, and an introduction to how this application can be used to teach geometry and to produce classroom resources with plane geometry components. Sponsored by the University of Illinois ...more>>

  38. Variance and Covariance: How Much Money Do Baseball Players Really Make? (MSTE) - Ed Malczewski; University of Illinois at Urbana-Champaign (UIUC)
    An exploration of idea of variance and how it is used in statistics. The average (mean) salary of a ballplayer in the majors leagues is $1.2 million dollars. Given only this fact, it is easy to see how the perception of the overpaid baseball player was ...more>>

  39. Whistler Alley Mathematics - Paul Kunkel
    Kunkel's Geometer's Sketchpad lessons convey a conceptual understanding, usually without rigorous proof, with questions and suggestions for extensions: Buffon's Needle (an old probability exercise); Chinese Handcuffs (questions with applications for geometry, ...more>>

  40. Wittgenstein Thought - Bill Finzer, Key Curriculum Press
    Two sketches illustrating a problem posed by Wittgenstein: A stick passes through a sleeve (in which it can smoothly slide). The sleeve is nailed to the wall. As one endpoint of the stick describes a circle, what does the other endpoint describe? One ...more>>

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