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Topic: Newsletter: Math Forum Internet News No. 2.28 (July 14)
Replies: 0

 Sarah Seastone Posts: 1,240 Registered: 12/3/04
Newsletter: Math Forum Internet News No. 2.28 (July 14)
Posted: Jul 12, 1997 6:35 PM

14 July 1997 Vol.2, No.28

THE MATH FORUM INTERNET NEWS

Numeroscope | 9th Grade NASA Math Test | Non-English Math

THE NUMEROSCOPE - PAUL BURCHARD

http://www.woodrow.org/teachers/math/modules/numeroscope/

The Numeroscope is a multi-media, interactive laboratory
for exploring number systems that form the basis for
mathematical cryptography. It uses exotic number systems
to illuminate the meaning of familiar algebraic operations
such as +, -, x, /, sqrt, and log.

The modules offer lab activities and discussion topics:

- Addition and Multiples: When counting 'wraps around'
- Multiplication, Powers, and Logarithms: How clock numbers
behave under multiplication; a discrete logarithm problem
- Factoring - Coiling up Clock Numbers; factoring out the
influence of primes
- Applications to Cryptography (RSA): The multiplicative
structure of clocks with pq hours (p,q prime)
- "Donut" Numbers - The Square Root: clock numbers and
'imaginary' roots
- Galois Numbers - Solving Polynomial Equations: creating
larger number systems by imagining solutions to more
complicated polynomial equations

You will need a Java-capable browser to use the Numeroscope.

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NASA 9TH GRADE MATH PROFICIENCY TEST

http://www.lerc.nasa.gov/Other_Groups/K-12/p_test/math_pro1.html

Practice questions for the Ohio ninth grade proficiency test
from the Information Infrastructure Technology and Applications
(IITA) K-12 Program of the NASA Lewis Research Center in
Cleveland, Ohio. Thirty nine questions help build skills in
Explanations why possible answers are correct or incorrect
are included, and a question that tests comprehension of basic

In addition to a Teacher's Resource Center, this site also
features a Wind Tunnel Aeronautics Activities project that
offers experiments and lesson plans designed to help
explain some of the basic principles of aeronautics.
Answers to problems and Space Mathematics Worksheets are
included.

http://www.lerc.nasa.gov/Other_Groups/K-12/classproject.html

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MATH FORUM NON-ENGLISH LANGUAGE RESOURCES

As a virtual center for mathematics on the Internet, the
Math Forum strives to be an international site. We know
that not all our users are native speakers of English, so
our Internet Resource Collection includes pages of math
resources in languages other than English. You can find
them by using our searcher to look for French or German
or Spanish:

http://forum.swarthmore.edu/dumpgrepform.html

math resources from French- and Spanish-speaking countries,

FRENCH
http://forum.swarthmore.edu/teachers/french.math.html

SPANISH
http://forum.swarthmore.edu/teachers/spanish.math.html

If you have or know of collections of math resources in other
languages, we'd be happy to add them to our Non-English
Language Resource page:

http://forum.swarthmore.edu/teachers/nonenglish.html

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CHECK OUT OUR WEB SITE:

The Math Forum http://forum.swarthmore.edu/
Problem of the Week http://forum.swarthmore.edu/geopow/
Internet Resources http://forum.swarthmore.edu/~steve/
Join the Math Forum http://forum.swarthmore.edu/join.forum.html

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The Math Forum ** 14 July 1997

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