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```MATH TOOLS NEWSLETTER - July 30, 2013 - No. 122

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: Geoboard, by The Math Learning Center
http://mathforum.org/mathtools/tool/211506/
Clarity Innovations
The Geoboard is a tool for exploring a variety of
mathematical topics introduced in the elementary and
middle grades. Learners stretch bands around pegs to
form line segments and polygons and make discoveries
about perimeter, area, angles, congruence, fractions,
and more.

***FEATURED TOOL
Tool: Cover Up
http://mathforum.org/mathtools/tool/211501/
Steve Rhine
Cover Up helps students develop a strategy for solving
algebraic equations that is more intuitive than
mechanical use of order of operations. Given an
equation that is "messy" with fractions, exponents,
square roots, etc., students cover up the challenging
part of the equation to make it more intuitive to solve.
Five different levels of problems are included.

***FEATURED TOOL
Tool: KaleidoPaint
http://mathforum.org/mathtools/tool/210549/
Jeff Weeks
As you draw, KaleidoPaint mirrors your brushstrokes to
create a beautiful infinitely repeating design. Features:
* 17 symmetry patterns
* Scroll, rotate, zoom
* Curve smoothing
* Area fill
* Reshape and recolor any point, curve or area
* Unlimited Undo/Redo
* Export your favorite paintings to the Photos app, or
e-mail them directly to a friend

***FEATURED TOOL
Tool: Number Rack, by The Math Learning Center
http://mathforum.org/mathtools/tool/211505/
Clarity Innovations
The Number Rack facilitates the natural development of
children's number sense. Rows of moveable, colored beads
encourage learners to think in groups of fives and tens,
helping them to explore and discover a variety of addition
and subtraction strategies.

***FEATURED TOOL
Tool: Turkey Feathers
http://mathforum.org/mathtools/tool/211419/
Laurel Pollard
Help the turkey collect his feathers in this addition game.

Tool: Hands-On Equations 1 Lite
http://mathforum.org/mathtools/tool/211412/
Hands On Equations
The unknown X variable is represented by a blue pawn on the
iPad screen while the constants are represented by number
cubes. In Lesson 1 the icons do not move. The student uses
thinking or guess and check to solve the equations.
Beginning with Lesson 2, the student places the game pieces
on the balance scale to represent the two sides of the
equation. Beginning with Lesson 3, the student simplifies
the equation by removing pawns from the balance to solve
for the unknown X. The student verifies his/her solution
by resetting the problem to conduct the check. Feedback is
provided to the student in the check phase of the problem.
Touch features are used to move the pieces around.

***FEATURED TOOL
Tool: Torus Games
http://mathforum.org/mathtools/tool/210550/
Jeff Weeks
Eight familiar games introduce children ages 10 and up to
the mind-stretching possibility of a "multiconnected
universe." Games include: tic-tac-toe, mazes, crossword
puzzles, word search puzzles, jigsaw puzzles, chess, pool
and gomoku. While playing the games, kids develop an
intuitive visual understanding of a model universe that
is finite yet has no boundary. Players who master the games
in 2D may enjoy the extra challenge of solving 3D mazes
and playing 3D tic-tac-toe in multiconnected 3D spaces.
Even though the games were designed with kids in mind,
adults interested in topology, geometry and cosmology
have also found them enjoyable and enlightening.

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