Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Policy and News » Math Forum Internet News

Topic: Newsletter: Math Forum Internet News No. 5.9 (28 Feb 2000)
Replies: 0  

Advanced Search

Back to Topic List Back to Topic List  
Sarah Seastone

Posts: 1,240
Registered: 12/3/04
Newsletter: Math Forum Internet News No. 5.9 (28 Feb 2000)
Posted: Feb 25, 2000 11:03 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

28 February 2000 Vol. 5, No. 9

THE MATH FORUM INTERNET NEWS

Optical Illusions - SandlotScience | Fair Division Calculator
Teaching/Learning Decimals


OPTICAL ILLUSIONS - SandlotScience

http://www.sandlotscience.com/
http://www.lainet.com/~ausbourn/

Interactive Java applets and multimedia explorations of
optical effects, with animations, art work, stories, and more.
Contents include:

- Impossible Objects, including columns, an endless
staircase, animated stairs, Java triangle models, an
interlaced tri-bar, an impossible hexnut, and more
- Distortion illusions of "breathing" objects, a cafe
wall, Fraze's Spiral, Poggendorf's Illusion, a twisted
cord, and others
- Contrast and Color: illusions driven by the way we see
- Typography: distortion and ambiguity
- Games and Puzzles: Java-flavored diversions
- Ambiguous Figures that appear as one thing, then
another - don't miss the "3-in-1 Animation" of the
Missing Corner Cube
- After-Effect Illusions: what keeps our eyes going after
we stop looking
- Camouflage: the art of blending into a similar background
- Moire Patterns: when two transparent patterns overlap
- Giants of Illusions: examples from the work of Jerry
Andrus, M. C. Escher, and Sandro del Prete

The site also offers a selection of recommended books,
science toys, kits, and projects; PDF-formatted projects;
and links to more optical illusion Web sites.

http://www.sandlotscience.com/links.htm
http://www.lainet.com/~ausbourn/links.htm


-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-


FAIR DIVISION CALCULATOR - Francis Su

http://www.math.hmc.edu/~su/fairdivision/calc/

An interactive Java applet designed to help you determine
how to divide among n people: a desirable object (such as
a cake); an undesirable object (such as a set of chores);
or a set of indivisible objects (rooms, desirable) with
payments (rent, undesirable).

See also Su's Fair Division page, with links to an
explanation of "fair division," to exact vs. approximate
algorithms, to Su's papers, and to other references on the
subject.

http://www.math.hmc.edu/~su/fairdivision/


-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-


TEACHING AND LEARNING ABOUT DECIMALS
Stacey, Chambers, Asp, Scott, Steinle
University of Melbourne, Australia

http://online.edfac.unimelb.edu.au/485129/DecProj/index.htm

A resource for teachers that explains the mathematical,
psychological, and pedagogical ideas needed to teach students
to work confidently with decimal numbers.

Contents include:

- Background: main ideas, what learners find hard
- Case Studies: video interviews and tests with six people
who demonstrate different, but common, wrong ideas
- Teaching: survey of approaches, tests, ideas for lessons,
educational software to download
- Glossary: definitions and examples of technical terms


-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-


CHECK OUT OUR WEB SITE:

The Math Forum http://forum.swarthmore.edu/
Ask Dr. Math http://forum.swarthmore.edu/dr.math/
Problems of the Week http://forum.swarthmore.edu/pow/
Mathematics Library http://forum.swarthmore.edu/library/
Teacher2Teacher http://forum.swarthmore.edu/t2t/
Discussion Groups http://forum.swarthmore.edu/discussions/
Join the Math Forum http://forum.swarthmore.edu/join.forum.html

SEND COMMENTS TO comments@forum.swarthmore.edu

_o \o_ __| \ / |__ o _ o/ \o/
__|- __/ \__/o \o | o/ o/__/ /\ /| |
\ \ / \ / \ /o\ / \ / \ / | / \ / \


The Math Forum ** 28 February 2000

An archive of all the Math Forum newsletters
and directions for subscribing can be found at
http://forum.swarthmore.edu/electronic.newsletter/






Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.