9 August 1999 Vol. 4, No. 32
THE MATH FORUM INTERNET NEWS
Math Curriculum Units  YNHTI  Calculator  TriBar Software  GCSE Mathematics
MATHEMATICS CURRICULUM UNITS
YaleNew Haven Teachers Institute (YNHTI)
http://www.cis.yale.edu/ynhti/
An educational partnership between Yale University and the
New Haven Public Schools, designed to strengthen teaching
and learning in local schools.
Produced by teachers participating in Institute seminars
since 1978, over a hundred volumes of teaching units offer
ideas and procedures for teaching English, history, social
studies, languages, the arts, mathematics, and science in
elementary, middle, and high schools. Each unit includes a
guide with a synopsis and recommendations, an introduction,
lesson plans or sample problems, and a bibliography.
Mathematics curriculum units range from "Integrating
Mathematical Concepts in the Study of the Atmosphere" and
"A Chronological History of Pi with Developmental Activities
in Problem Solving" to "Practicing Precision: Lessons from
Mathematical Language and Writing."
http://www.cis.yale.edu/ynhti/curriculum/indexes/m.x.html#mathematics
Statistics curriculum units range from "Paper Airplanes" to
"Scaling the Natural World Using Dimensional Analysis."
http://www.cis.yale.edu/ynhti/curriculum/indexes/s.x.html#statistics
Search for units or guides from the YNHTI home page; a full list
appears in the Directory of Volumes:
http://www.cis.yale.edu/ynhti/curriculum/units/
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CALCULATOR V1.0.1  Harold Thimbleby, TriBar Software
http://www.tribar.dabsol.co.uk/calculator.html
A freeware Macintosh calculator that balances equations for
you as you type them in. Its functions include the usual
four arithmetic functions, as well as exponentiation,
trigonometry, logarithms, and factorial. Many functions have
options that support generalizations: multiplication, for
example, can also be used for finding roots or prime factors;
and division can find rational approximations. All functions
have inverses, even factorial (what is 40340 nearly the
factorial of?).
The calculator includes a list of numerical constants and
formulas, such as the radius of the earth and all SI prefixes.
Requires System 7.1 or greater.
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GCSE MATHEMATICS
Philip Adams, GCSE Answers Limited, U.K.
http://www.gcse.com/Maths/pre.htm
Exam preparation materials, including:
Basic tutorials with Java
 negative numbers
 probability
 trigonometry 1 (rightangled triangles)
 trigonometry 2 (sine and cosine rules)
"Easy Starts" followed by "Heavy Duty Stuff" for reviewing
algebra, functions and sequences, graphs, probability,
ratios and fractions, 2D shapes, 3D shapes, and trigonometry.
Students are advised to work through the questions, work out
the answers on paper, and compare their solutions with
answers on the site.
GCSE Mathematics forms part of the GCSE Answers site, which
also offers English tutorials and handy tips, and English
and English literature syllabi.
http://www.gcse.com/
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CHECK OUT OUR WEB SITE:
The Math Forum http://mathforum.org/
Ask Dr. Math http://mathforum.org/dr.math/
Problems of the Week http://mathforum.org/pow/
Mathematics Library http://mathforum.org/library/
Teacher2Teacher http://mathforum.org/t2t/
Discussion Groups http://mathforum.org/discussions/
Join the Math Forum http://mathforum.org/join.forum.html
Send comments to the Math Forum Internet Newsletter editors
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