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```MATH TOOLS NEWSLETTER - December 30, 2012 - No. 115

***2013 MATHEMATICS GAME
http://mathforum.org/yeargames/
The 2013 Year Game challenges students to write
expressions for each of the counting numbers 1 through
100, using the digits in the year 2013, standard
operations, and grouping symbols. View the rules,
worksheet, and manipulatives for 2013 now before
submitting your own solutions starting January 1st,
which we'll start displaying on February 1, 2013.

***MATH FORUM ONLINE PD COURSES
http://mathforum.org/pd/
Our next professional development courses start soon:
- Problem Solving Strategies
http://mathforum.org/pd/problemsolving/
- PoW Class Membership: Resources & Strategies for
Effective Implementation
http://mathforum.org/pd/membership/
- Mentor Your Own: Supporting Strong Development of
Mathematical Practices
http://mathforum.org/pd/mentorown/
- Learning from Student Work: Make the Most of Your
PoW Membership
http://mathforum.org/pd/studentwork/

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***FEATURED DISCUSSION
Using iPad apps in the classroom

***FEATURED DISCUSSION
Maple IDE - efficient development toolkit for Maple
HelenGolovina says, "Maple IDE is the only Eclipse based
efficient development toolkit to rapidly build standout
applications for Maple, one of the most powerful Computer
Algebra Systems."

***FEATURED TOOL
Tool: Geom-e-Twee
http://mathforum.org/mathtools/tool/188554/
John Miller
This is the junior version of Geom-e-Tree. It enables the
manipulation of geometric trees with two or three branches.
Change the angle between branches and the common ratio.
Selectable themes draw trees with uniform color, or
different colors on successive levels. Shadows on some
themes show overlapping branches. The app always scales the
Twee to fit within the view, and has a "perfect reduction
factor mode" that draws self-contacting trees (not
over-lapping or stunted).

***FEATURED TOOL
Tool: Data Games: Lunar Lander
http://mathforum.org/mathtools/tool/188497/
KCP Technologies, U Mass-Amherst
Students develop their skills with polynomial and rational
expressions to create formulas that evaluate lunar
landings. [Access requires setting up a (free) login.]

***FEATURED TOOL
Tool: Maple IDE (integrated development environment)
http://mathforum.org/mathtools/tool/190130/
DigiArea, Inc.
This flexible development toolkit for Maple includes a code
editor with code folding, syntax coloring, code formatting
and real-time error detection. Maple IDE also delivers
features specific to developing Maple applications like
advanced Maple Project, Outline views, code Templates,
Running and Debugging tools and more.

***FEATURED TOOL
Tool: Data Games: Cartweight
http://mathforum.org/mathtools/tool/191797/
KCP Technologies, U Mass-Amherst
Students guess the total weight of a cart loaded with a
given number of bricks. This requires them to interpret
and apply data from the linear model. [Access requires

***FEATURED TOOL
Tool: PolygonFlux
http://mathforum.org/mathtools/tool/188576/
John Miller
PolygonFlux lets you experience the flow of energy inside
a polygon by tracing the path of a point bouncing around
inside a polygon of your choice, generating a pretty pattern.
You control the location of the "shooter" and its direction.
The path the point travels is displayed instantly, as
determined by the Law of Reflection: "The angle of reflection
is equal to the angle of incidence," meaning that the point
bounces off a side at the same angle it came in on, just like
a billiard ball deflects off a bumper on a pool table, or a
light ray reflects off a mirror.

***FEATURED TOOL
Tool: Data Games: Shuffleboard
http://mathforum.org/mathtools/tool/191799/
KCP Technologies, U Mass-Amherst
Students try to push disks using varying amounts of force
and earn higher scores when they land on a pad without
falling off. They learn to interpret data from the linear
model relating the distance to the amount of push.
[Access requires setting up a (free) login.]

***FEATURED TOOL
Tool: PolygonTrix
http://mathforum.org/mathtools/tool/188573/
John Miller
Every school child has played with a pool ball on a
rectangular table or a carom puck on a square board. What
would change if the table were a triangle or a pentagon?
PolygonTrix is a game that shows how tricky the dynamics
can be inside a regular polygon of three to nine sides.

***FEATURED TOOL
Tool: Data Games: Floyd's of Fargo
http://mathforum.org/mathtools/tool/191800/
KCP Technologies, U Mass-Amherst
Students find the optimal price for an insurance company
premium in this game by interpreting data and applying
their understanding of linear and quadratic models.
[Access requires setting up a (free) login.]

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