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```         MATH TOOLS NEWSLETTER - MAY 5, 2007 - No. 51

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
Great Stella
Robert Webb
http://mathforum.org/mathtools/tool/30630/
Great Stella allows you to view 3D polyhedra. Hundreds
provided (Platonic, Archimedean, Kepler-Poinsot & all
other uniform polyhedra, Johnson Solids, Stewart toroids,
compounds, geodesics, etc.). Rotate in 3D, print nets to
build your own paper polyhedron models. Put photos on faces.
Create new polyhedra: stellation, faceting, zonohedra,
dual-morphing, augmentation. Export to 3D formats. See it
all in true 3D if you have red-blue glasses. Limited demo
the basic version Small Stella.

***FEATURED TOOL
Furbles
Alec McEachran
http://mathforum.org/mathtools/tool/31036/
Furbles are fun and engaging creatures for use on
interactive whiteboards with students of all ages. They
were originally designed for statistics, probability and
logic to teach students about charts and diagrams. Their
flexible structure also allows teachers to use them for
number and geometry. There is a commercial version that
requires payment to use, but also a freely available and
functional demo version.

***FEATURED LESSON PLAN
Rational Number Project
Cramer, K., Behr, M., Post, T., Lesh, R.
http://mathforum.org/mathtools/lesson/30995/
The Rational Number Project (RNP) is a cooperative research
and development project funded by the National Science
Foundation. Project personnel have been investigating
children's learning of fractions, ratios, decimals and
proportionality since 1979. This book of fraction lessons
is the product of several years of working with children in
classrooms, and organizes instruction so students develop
a deep, conceptual understanding for fractions.

***FEATURED SUPPORT MATERIAL
Graph Paper/Dot Paper/Lined Paper/Polar Plotting
Incomtech
http://mathforum.org/mathtools/support/30994/
This website provides free, PDF-format graph paper, dot paper,
lined paper, and polar graph paper.

***FEATURED DISCUSSION
Does step size really equal speed?
KT8 explains, "There is an assumption being made in this
simulation that I don't agree with."

***FEATURED DISCUSSION
Algebra I Teaching
jlbmagic states, "I'm going to be teaching Algebra 1 for the
first time next year. I'm confident that I can do it, since I
have a conceptual frame of mind in teaching math. I can look
at what the text presents and develop more conceptually based
lessons, but if anyone knows of good sources, please share
them with me."

***FEATURED DISCUSSION
Graphing Calculators
http://mathforum.org/mathtools/discuss.html?&do=r&msg=31156
teaching tools?"

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