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Topic: Newsletter: Math Forum Internet News No. 16.27 (8 Jul 11)
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Math Forum Internet News

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Registered: 3/1/05
Newsletter: Math Forum Internet News No. 16.27 (8 Jul 11)
Posted: Jul 8, 2011 1:35 PM
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8 July, 2011 Vol. 16, No. 27

THE MATH FORUM @ DREXEL INTERNET NEWS

Was Leonardo Correct? (continued)
2011 China Girls Math Olympiad | The Mathematical Tourist

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WAS LEONARDO CORRECT? (CONTINUED)

http://mathforum.org/pcmi/hstp/resources/leonardo/

This activity challenges students to examine the accuracy of
the anatomical proportions considered ideal by Leonardo da
Vinci, and to compare different ways of measuring what is
"typical" in a population.

Using least-squares lines, mean, median and percentiles,
students identify typical ratios between different body
measurements. They may also sample the activity's large
collection of 3,982 cases to test for accuracy and bias.

This activity builds on a lesson from Exploring Statistics with
Fathom entitled "Least-Squares Lines and Correlation - Was
Leonardo Correct?" It was developed as part of the Park City
Mathematics Institute, currently under way:

http://mathforum.org/pcmi/hstp/sum2011/

\|/

Visit Math Tools to rate, review, or discuss this new resource:

http://mathforum.org/mathtools/lesson/131291/

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

Now taking place: math education conversation of the hour

"I wanted to report my shock with my AP scores.... I have been
teaching the course for 8 years and these results mirror my
work of my first couple of years. Needless to say I find myself
wondering why...how can we control ourselves?"

- Fernando, posted to the ap-calculus discussion group

http://mathforum.org/kb/thread.jspa?threadID=2277743

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

2011 CHINA GIRLS MATH OLYMPIAD

http://www.msri.org/web/msri/static-pages/-/node/261

Follow the mathematical adventures of eight of the nation's
brightest young women as they write outposts chronicling their
preparations for, and participation in, the 2011 China Girls
Mathematical Olympiad (CGMO).

With a proof-based format similar to the International Math
Olympiad, the CGMO began in 2002 as a regional competition for
teams of female students from China and other Asian countries.
Invited to participate in 2007, the U.S. has medaled at CGMO
ever since. In fact, every member of every U.S. team in the
past three years has come home with individual honors.

Funding for this U.S. CGMO project is provided by IBM
Research - Almaden, Akamai Foundation, Mathematical Association
of America, the Mathematical Sciences Research Institute,
Sunlin and Priscilla Chou Foundation, and Science Workshop.

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

Now taking place: math education conversation of the hour

"What are you talking about? An 82% passing rate is ideal. It
means you are doing a great job and also probably allowing
enough students to take the class. A 100% passing rate would
indicate you should probably be increasing enrollment in
the class."

- Susan, posted to the ap-calculus discussion

http://mathforum.org/kb/message.jspa?messageID=7496590

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

THE MATHEMATICAL TOURIST

http://mathtourist.blogspot.com/

On this blog, Ivars Peterson writes about and shares photos of
"cool stuff that he encounters while browsing the world of
mathematics and computer science," such as new developments in
math and its applications, old puzzles, famous problems, and
historic events.

Peterson serves as the Director of Publications and
Communications for the Mathematical Association of America
(MAA). He tags his blog entries with labels such as

- architecture
- communicating mathematics
- India
- Moebius Strips
- geometreks (outdoor sculpture of a geometric nature)

Posts, dating back to October, 2006 and written in the spirit
of his MAA column "MathTrek," have included

- Tensegrity Tower in New Orleans
- Pythagoras at the Plate
- Sliding Pi in Toronto
- Fire Hydrant Pentagons
- The Fabulously Odd 11-Cell

For more articles, books, and presentations by Peterson, visit

http://sites.google.com/site/ivarspeterson/

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

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The Math Forum @ Drexel ** 8 July 2011

An archive of all the Math Forum newsletters
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<head>
<title>The Math Forum Internet News</title>
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<td><font color="#333333" size="1" face="Verdana, Arial, Helvetica, sans-serif"><strong>8 July, 2011</strong></font></td>
<td><div align="right"><font color="#333333" size="1" face="Verdana, Arial, Helvetica, sans-serif"><strong>Volume 16 No. 27</strong></font></div></td>
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<strong>In This Issue</strong>
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<!-- Start - Table of contents -->

<p><font size="2" face="Arial, Helvetica, sans-serif">Was Leonardo Correct? (continued)</font></p>
<p><font size="2" face="Arial, Helvetica, sans-serif">2011 China Girls Math Olympiad</font></p>
<p><font size="2" face="Arial, Helvetica, sans-serif">The Mathematical Tourist</font></p>

<p>&nbsp;</p>

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<p><strong>
<font color="#003399">Was Leonardo Correct? (continued)</font>
</strong>
</p>
<p align="center">
<a href="http://mathforum.org/pcmi/hstp/resources/leonardo/">http://mathforum.org/pcmi/hstp/resources/leonardo/</a>
</p>
<p>
This activity challenges students to examine the accuracy of
the anatomical proportions considered ideal by Leonardo da
Vinci, and to compare different ways of measuring what is
"typical" in a population.
</p>
<p>
Using least-squares lines, mean, median and percentiles,
students identify typical ratios between different body
measurements. They may also sample the activity's large
collection of 3,982 cases to test for accuracy and bias.
</p>
<p>
This activity builds on a lesson from <i>Exploring Statistics with Fathom&trade;</i>
entitled "Least-Squares Lines and Correlation - Was
Leonardo Correct?" It was developed as part of the Park City
Mathematics Institute, currently under way:
</p>
<p align="center"><a href="http://mathforum.org/pcmi/hstp/sum2011/">http://mathforum.org/pcmi/hstp/sum2011/</a></p>
<p>
Visit Math Tools to rate, review, or discuss this new resource:
</p>
<p align="center"><a href="http://mathforum.org/mathtools/lesson/131291/">http://mathforum.org/mathtools/lesson/131291/</a></p>
</font></p>

<hr>
<p><font size="2" face="Arial, Helvetica, sans-serif">
<p align=center>
<dl>
<dt>
<i><font color="#003399">Now taking place: math education conversation of the hour</font></i>
<p>
<dt>
"I wanted to report my shock with my AP scores.... I have been
teaching the course for 8 years and these results mirror my
work of my first couple of years. Needless to say I find myself
wondering why...how can we control ourselves?"
<dd>
- Fernando, posted to the ap-calculus discussion group
<dd>
<a href="http://mathforum.org/kb/thread.jspa?threadID=2277743">http://mathforum.org/kb/thread.jspa?threadID=2277743</a>
</dl>
</p>
</font></p>
<hr>

<p><font size="2" face="Arial, Helvetica, sans-serif">
<p><strong><font color="#003399">2011 China Girls Math Olympiad</font></strong></p>
<p align="center">
<a href="http://www.msri.org/web/msri/static-pages/-/node/261">http://www.msri.org/web/msri/static-pages/-/node/261</a>
</p>
<p>
Follow the mathematical adventures of eight of the nation's
brightest young women as they write outposts chronicling their
preparations for, and participation in, the 2011 China Girls
Mathematical Olympiad (CGMO).
</p>
<p>
With a proof-based format similar to the International Math
Olympiad, the CGMO began in 2002 as a regional competition for
teams of female students from China and other Asian countries.
Invited to participate in 2007, the U.S. has medaled at CGMO
ever since. In fact, every member of every U.S. team in the
past three years has come home with individual honors.
</p>
<p>
Funding for this U.S. CGMO project is provided by IBM
Research - Almaden, Akamai Foundation, Mathematical Association
of America, the Mathematical Sciences Research Institute,
Sunlin and Priscilla Chou Foundation, and Science Workshop.
</p>
</font></p>

<hr>
<p><font size="2" face="Arial, Helvetica, sans-serif">
<p align=center>
<dl>
<dt>
<i><font color="#003399">Now taking place: math education conversation of the hour</font></i>
<p>
<dt>
"What are you talking about? An 82% passing rate is ideal. It
means you are doing a great job and also probably allowing
enough students to take the class. A 100% passing rate would
indicate you should probably be increasing enrollment in
the class."
<dd>
- Susan, posted to the ap-calculus discussion
<dd>
<a href="http://mathforum.org/kb/message.jspa?messageID=7496590">http://mathforum.org/kb/message.jspa?messageID=7496590</a>
</p>
</font></p>
</dl>
<hr>

<p><font size="2" face="Arial, Helvetica, sans-serif">
<p><strong><font color="#003399">The Mathematical Tourist</font></strong></p>
<p align="center">
<a href="http://mathtourist.blogspot.com/">http://mathtourist.blogspot.com/</a>
</p>
<p>
On this blog, Ivars Peterson writes about and shares photos of
"cool stuff that he encounters while browsing the world of
mathematics and computer science," such as new developments in
math and its applications, old puzzles, famous problems, and
historic events.
</p>
<p>
Peterson serves as the Director of Publications and
Communications for the Mathematical Association of America
(MAA). He tags his blog entries with labels such as
</p>
<ul>
<li>
architecture
</li>
<li>
communicating mathematics
</li>
<li>
India
</li>
<li>
Moebius Strips
</li>
<li>
geometreks (outdoor sculpture of a geometric nature)
</li>
</ul>
<p>
Posts, dating back to October, 2006 and written in the spirit
of his MAA column "MathTrek," have included
</p>
<ul>
<li>
Tensegrity Tower in New Orleans
</li>
<li>
Pythagoras at the Plate
</li>
<li>
Sliding Pi in Toronto
</li>
<li>
Fire Hydrant Pentagons
</li>
<li>
The Fabulously Odd 11-Cell
</li>
</ul>
<p>
For more articles, books, and presentations by Peterson, visit
</p>
<p align="center"><a href="http://sites.google.com/site/ivarspeterson/">http://sites.google.com/site/ivarspeterson/</a></p>
</font></p>

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