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Newsletter: Math Forum Internet News No. 2.40 (Oct. 6)
Posted:
Oct 5, 1997 12:36 PM


6 October 1997 Vol.2, No.40
THE MATH FORUM INTERNET NEWS
Stock Market Project  Spatial Puzzles  Jenicek  Math & Public Policy
THE GOOD NEWS BEARS STOCK MARKET PROJECT
http://www.ncsa.uiuc.edu/edu/RSE/RSEyellow/gnb.html
This interdisciplinary project for middle school students and teachers includes lesson plans for English, Math, and Social Studies, stock basics lessons, Internet links, and teacher record sheets. The teacher may be the stock broker (best where there's a singleline connection), or the students may be brokers (as in a networked lab environment).
The project involves an interactive stock market competition between classmates, using realtime stock market data from the New York Stock Exchange and NASDAQ. Objectives:
 to recognize and use terms related to market activities  to use research tools on the Web to make informed decisions in developing a stock portfolio  to allow students to track and manage their own portfolios of stocks  to recognize the effect that economic indicators, company management, political climate, foreign relations, and other variables have on the stock market
Students will learn to analyze their own stock data in relation to the fluctuating indicators.
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SPATIAL RELATIONS PUZZLES  JAY JENICEK
The SOMA Cube Page
http://lonestar.texas.net/~jenicek/somacube/somacube.html
A seven piece threedimensional puzzle made up of three or four cubes apiece, invented by Piet Hein, the Danish writer. The seven pieces may be arranged into billions of different combinations.
Piet Hein's theorem states that if you take all the irregular shapes that can be formed by combining no more than four cubes, all the same size and joined at their faces, these shapes can be put together to form a larger cube.
Jenicek provides instructions for building a SOMA cube, challenging shapes to attempt (with solutions), an example of a SOMA proof, a SOMA cube Java applet, and links to other SOMA web sites.
The PENTOMINOS Page
http://lonestar.texas.net/~jenicek/pentomin/pentomin.html
A pentomino is a shape made by joining five squares edge to edge to form various combinations. There are twelve possible shapes in a set of unique pentominos, named T, U, V, W, X, Y, Z, F, I, L, P, and N. (You might remember all the letters from the end of the alphabet, TUVWXYZ, and the capital letters in the word FILiPiNO.)
The first pentomino problem was written by the English puzzle inventor Henry Ernest Dudeny in 1907; Solomon W. Golomb gave the puzzle its name. This page features five basic games with variations and links to other pentomino sites.
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MATHEMATICS AND PUBLIC POLICY
http://forum.swarthmore.edu/social/math.publicpol.html
Links to organizations that attempt to influence public policy where mathematics and science are concerned, from the American Association for the Advancement of Science (AAAS) to the Joint Policy Board for Mathematics (JPBM).
This page from the Math Forum is part of its exploration of Key Issues for the Math Community:
http://forum.swarthmore.edu/social/
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The Math Forum ** 6 October 1997
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