Math Forum Internet News

Volume 7, Number 32

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12 August 2002                                       Vol. 7, No. 32

                   THE MATH FORUM INTERNET NEWS

       Fun with Fractals and the Platonic Solids - Chandler
  Programming Contest: Triangles - Zimmerman | xyAlgebra - Miller


    FUN WITH FRACTALS AND THE PLATONIC SOLIDS - Gayla Chandler

             http://www.public.asu.edu/~starlite/

  A site rich with photographs and drawings of Sierpinski
  triangles and Platonic solids, made by hand, to inspire
  children of all ages to construct their own mathematical
  structures.

  Sections include:
    - Introduction
    - Sierpinski's Tetrahedron
    - Coloring Pages
        Building and Playing
        Kids and Fractals in Nature
        Math Structures
    - Build Your Own Structures

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         PROGRAMMING CONTEST: TRIANGLES - Al Zimmermann
             Submission deadline: October 15, 2002

http://members.aol.com/bitzenbeitz/Contests/Triangles/Description.html

  Triangles is a new contest offered by Al Zimmerman as part
  of his Programming Contests site. There is a cash prize of
  $300 for the winning entry and $50 for the second place entry.
  To enter, email your solution following the guidelines
  provided.

  The contest has an associated discussion list where you will
  find clarifications and (occasionally) mid-contest changes
  to the rules, discussion of techniques for solving the
  contest's problem, and links to related web pages. The
  Discussion List link and links to other contests can be
  found on the main contest page:

          http://members.aol.com/bitzenbeitz/Contests/

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                  XYALGEBRA - John C. Miller

                  http://www.xyalgebra.org/

  xyAlgebra provides interactive instruction and practice
  for algebra and word problems. The student programs include:
 
    - Explanations of principles of basic algebra
        (320 instructional items).
    - Step-by-step sample problems for which the student can
        request hints or suggested next steps.
    - Practice problems randomly generated until the student
        shows mastery.
    - Solution strategies that change intelligently in response
        to the student's steps.
  
  The Instructor Program, xyManager, allows teachers to:
    - Offer instruction locally or over the Internet.
    - Track progress and time spent by each student.
    - Assign exams and calculate averages and final grades automatically.
    - Send class data to printer or file for analysis using a spreadsheet.

  Download a four-minute demo problem or the entire xyAlgebra
  package.

        http://www.xyalgebra.org/Download/download.html

  Professor John C. Miller, of The City University of New York,
  will be exhibiting and speaking about xyAlgebra at the
  International Conference on Technology in Collegiate
  Mathematics (ICTCM).

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 INTERNATIONAL CONFERENCE ON TECHNOLOGY IN COLLEGIATE MATHEMATICS

                      http://www.ictcm.org/

               October 31 - November 3, 2002
           Hilton in the Walt Disney World Resort
                      Orlando, Florida

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