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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 -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- 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/ -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- 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). \|/ 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 -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- CHECK OUT OUR WEB SITE: The Math Forum http://mathforum.org/ Ask Dr. Math http://mathforum.org/dr.math/ Problems of the Week http://mathforum.org/pow/ Mathematics Library http://mathforum.org/library/ Teacher2Teacher http://mathforum.org/t2t/ Discussion Groups http://mathforum.org/discussions/ Join the Math Forum http://mathforum.org/join.forum.html Send comments to the Math Forum Internet Newsletter editors Donations http://deptapp.drexel.edu/ia/GOL/giftsonline1_MF.asp _o \o_ __| \ / |__ o _ o/ \o/ __|- __/ \__/o \o | o/ o/__/ /\ /| | \ \ / \ / \ /o\ / \ / \ / | / \ / \ |

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