


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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