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26 May 2003 Vol. 8, No. 21 THE MATH FORUM INTERNET NEWS NCTM Research Catalyst Conference | Escher and the Droste Effect Javascript School Math Toolkit - LeMieux NCTM RESEARCH CATALYST CONFERENCE http://www.nctm.org/highered/catalyst.htm The National Council of Teachers of Mathematics (NCTM) will host a Research Catalyst Conference September 11-13, 2003, at the Sheraton Reston in Reston, Virginia. This working conference will bring together approximately 100 participants from various research communities. The goal of the conference is to catalyze coordinated research about the impact, implementation, and influence of state and national standards and related national initiatives, including assessments, instructional materials, and teacher education programs. The conference is being planned by NCTM and is funded by NCTM and the National Science Foundation. Financial support for travel, hotel, and meals during the conference is provided. Applications are due June 15, 2003. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- ESCHER AND THE DROSTE EFFECT http://escherdroste.math.leidenuniv.nl/ This project is an initiative of Hendrik Lenstra of the Universiteit Leiden and the University of California at Berkeley. Bart de Smit of the Universiteit Leiden runs the project. Their joint paper, Artful Mathematics: The Heritage of M.C. Escher, is the main resource for this site. Named after a Dutch chocolate maker, the Droste effect refers to an image that contains itself on a smaller scale. - Introduction - Escher - Method - Five steps - Images - Animation Download the paper in PDF format: http://www.ams.org/notices/200304/fea-escher.pdf -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- JAVASCRIPT SCHOOL MATH TOOLKIT http://www2.whidbey.net/ohmsmath/webwork/javascript/js_tools.html These Javascript activities created by Jeff LeMieux for his middle school students range in topic from basic skills practice to simulating coin tosses for a probability lesson. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- 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/ Math Tools http://mathforum.org/mathtools/ 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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