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```      MATH TOOLS NEWSLETTER - APRIL 4, 2008 - No. 62

***THE GREAT GREEN GLOBS CONTEST "PRACTICE" CHALLENGE
http://www.ciese.org/CIESEmath/globs.html
Sharon Dugdale recently announced the release of Green
Globs to a Math Tools discussion, where she has "very much
Green Globs enthusiast Ihor Charischak replied:

"This is great News! Just in time for folks to get to
prepare for the global 'Great Green Globs Contest' which I
will be announcing later this month and will be happening
in late May."

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

***FEATURED TOOL
Tool: 3 Equations - 3 Unknowns Matrix Practice Tool
Jeff LeMieux
http://mathforum.org/mathtools/tool/42942/
One of the problems in dealing with three equations and
three unknowns is a lack of practice problems. This
script provides a new problem set each time which has
integer answers. Another difficulty faced by students
is the fact of paying attention to the details of each
step in the solution which often leads to incorrect
answers. This script allows students to practice the
procedures while keeping the math accurate.

***FEATURED TOOL
Tool: 3 Equations - 3 Unknowns Matrix Solver Tool
Jeff LeMieux
http://mathforum.org/mathtools/tool/42944/
This is a companion program to "3 Equations - 3 Unknowns
Matrix Practice Tool." This program does not solve the
3 equations-3 unknowns system; rather it is a tool to
help the student work through the problem using combination.
It will also allow entry of numbers in mid-course should
one desire to try a substitution. Use of the practice
program is encouraged to develop facility with the process.

***FEATURED SUPPORT MATERIAL
Support Material: Area Discussion
Shodor: Project Interactivate
http://mathforum.org/mathtools/support/40166/
A dialogue between a student and a mentor about finding
areas of irregular shapes on a grid.

***FEATURED DISCUSSION
Demise of Green Globs
http://mathforum.org/mathtools/discuss.html?&do=r&msg=43618
Sharon Dugdale adds to an ongoing discussion: "Good news!
The Mac OS X version of Green Globs is now available!"

***FEATURED DISCUSSION
Graphing Tool
http://mathforum.org/mathtools/discuss.html?&do=r&msg=41177
Trish Kepler explains, "These explorative tools are only
really effective with direction. Without a concrete
objective, my kids would be likely to spend a lot of time
playing without really understanding the point of the tool."

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/

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The Math Forum @ Drexel -- 4 April 2008

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