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```      MATH TOOLS NEWSLETTER - August 27, 2010 - No. 90

***eInstruction Contest
http://mathforum.org/pd/contest.html
Enter eInstruction's Global Classroom Makeover Video Contest to
win a Math Forum Problems of the Week School Membership and
three (3) registrations to participate in our online course,
PoW Class Membership: Resources & Strategies for Effective
Implementation--a value of \$1,946!

And this is just one of the prizes that will be awarded in each
category:

***Orientation Sessions
http://mathforum.org/pd/#sessions
about the many features of our services. Registration (free) is
open now for self-paced sessions focusing on:

Math Tools [session date: Oct 7 - 13]
http://mathforum.org/pd/orientation_mathtools/

tPoWs [session date: Oct 14 - 20]
http://mathforum.org/pd/orientation_tpow/

Problems of the Week [session date: Sept 16 - 22]
http://mathforum.org/pd/orientation_pow/

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As you browse the catalog, please take a moment to rate a
resource, comment on it, review it -- join an existing
conversation, or start a new discussion!

***FEATURED TOOL
Tool: Graphical Function Explorer (GFE) - Math Open Reference
http://mathforum.org/mathtools/tool/86519/
John Page
A free web-based function graphing tool. Graph up to three different
functions on the same axes. Functions can refer to up to three
independent variables controlled by sliders. As you move the sliders,
the graphs change in real time to reveal the effects of the variables.

***FEATURED TOOL
Tool: How much did it cost back in?
http://mathforum.org/mathtools/tool/99079/
Blake M. Scarbrough
This WolframAlpha widget calculates and displays the current value
of a historical amount of money.

***FEATURED TOOL
http://mathforum.org/mathtools/tool/98796/
BCC/Netmedia
scenes. Illustrated prompts such as "I spy a tall building.
Which is the tallest?" are available in three languages:
Urdu, Bengali and English.

***FEATURED TOOL
Tool: Coins & Dice
http://mathforum.org/mathtools/tool/98794/
Duncan Keith
Use this coin flipping and die rolling simulator to generate
results from single or multiple coins and dice.

***FEATURED TOOL
Tool: Constructing a pentagon inscribed in a circle - Math
Open Reference
http://mathforum.org/mathtools/tool/98395/
John Page
An interactive applet and associated web page that provide
step-by-step instructions on how to construct a pentagon
inscribed in a circle using only a compass and straightedge.
The method begins with a given circle into which we will
inscribe the pentagon.

***FEATURED TOOL
http://mathforum.org/mathtools/tool/98167/
Duncan Keith
Test yourself on quadratic equations with these ten questions
of increasing difficulty. They cover quadratics up to (UK) GCSE
intermediate level, and much of GCSE higher level material as well.

***FEATURED TECHNOLOGY POW
Technology PoW: Balloon Booths
http://mathforum.org/mathtools/tpow/17731/
Roschelle, Drier, Gertler, Jackiw, and Alejandre
Pop a hot air balloon by scaling its size so that it fits through
a narrow passage and hits a nail.
login page, or use your existing KenKen or Problems of the Week

***FEATURED DISCUSSION
New on-line Algebra tool
KennyTilton writes, "I am gradually rolling out a Web-based
version of my desktop application for practicing Algebra."

CHECK OUT THE MATH TOOLS SITE:

Math Tools  http://mathforum.org/mathtools/
Register  http://mathforum.org/mathtools/register.html
Discussions  http://mathforum.org/mathtools/discuss.html
Research Area  http://mathforum.org/mathtools/research/
Developers Area  http://mathforum.org/mathtools/developers/