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```     MATH TOOLS NEWSLETTER - July 26, 2012 - No. 110

***Teacher2Teacher
http://mathforum.org/t2t/
teaching mathematics? Are you wondering about how to best
level? Teacher2Teacher (T2T) is a free service provided
by the Math Forum and staffed by our T2T Associates:
http://mathforum.org/t2t/bios/
individual response via email:

August 2, 2012
http://mathforum.org/blogs/happy-birthday-math-forum/
Planning to be in Philadelphia next week? The Math Forum
is throwing back the curtains, dusting off the desks and
opening our doors! Come help us celebrate 20 years of
the Math Forum. Stop by our offices on August 2nd from
2:30-4:30pm, have some cake, meet and chat with our staff,
and play some great math games.

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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: Tip Jar
http://mathforum.org/mathtools/tool/131388/
Mathalicious
What's the deal with all the tip calculators in the App
Store? Is calculating 15% hard? Nope, and this lesson uses
percents to explore the math of eating -- and working -- in
a restaurant, from leaving tips to deciding where to work.

***FEATURED TOOL
Tool: Plomplex (complex function plotter)
http://mathforum.org/mathtools/tool/165759/
pimvdb
Plomplex is a complex function plotter using domain coloring.
You can compose a function with a complex variable z, and
generate a domain coloring plot of it. You can choose the plot
range as well as the plot size. Iteration is also available
(such as "f(f(x))"). Requires the Google Chrome browser.

***FEATURED TOOL
Tool: The Trig Jig
http://mathforum.org/mathtools/tool/167356/
Vika Wasyliw, Grace Ulinski, Ellie Bayles, Steve Weissburg
This dance was intended to be an easy way to remember the
graphs of six basic trigonometric functions: sine, cosine,
tangent, cosecant, secant, and cotangent.

***FEATURED TOOL
Tool: Derivative Calculator
http://mathforum.org/mathtools/tool/167687/
David Scherfgen
A symbolic online calculator for derivatives and partial
derivatives. The user input is transformed into a graphical
formula while typing in order to avoid typing mistakes.

***FEATURED TOOL
Tool: Algebra Touch
http://mathforum.org/mathtools/tool/172439/
Regular Berry Software LLC
An algebra practice program for anyone working on simplifying
expressions and solving equations. Create your own sets of
problems to work through in the equation editor, and have
them appear on all of your devices with iCloud.

***FEATURED TOOL
Tool: Fourth Grade Splash Math [Lite]
http://mathforum.org/mathtools/tool/170325/
The full version of Splash Math has 13 chapters covering over
185 math skills and a supply of problems appropriate for fourth
two of the 13 chapters, including "Place Value" (numbers to a
million) and "Number Sense" (compare, order, and round numbers).

***FEATURED DISCUSSION
Area, Volume, and Pythagorean apps
jmeapps announces, "JMEapps is dedicated to development of simple,
easy-to-use apps for students (and professionals...). They are free,
so check them out! You can find the apps on GooglePlay. If you have
suggestions for apps, please feel free to email. Thanks!"

***FEATURED DISCUSSION
RE: Imagine Cup winners! - now the World Champions!
Suzanne adds to an ongoing discussion, "and ... drum roll, the news
on July 11 was: 'Drexel University computer science graduates Matt
Lesnak, Keith Ayers and N. Taylor Mullen claimed a world championship
in the Microsoft Imagine Cup technology design competition after
their "Math Dash" game rose to the top from a field of 106 teams from
75 countries.' Read more details here: http://bit.ly/MmjSnT"

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