7 June 1999 Vol. 4, No. 23
THE MATH FORUM INTERNET NEWS
Precalculus Page  Interactive Online Geometry  Federal Resources (FREE)
THE PRECALCULUS PAGE
http://www.teleport.com/~gmhill/
Lesson plans and staff development activities with a
problemsolving approach. Materials focus on logarithms,
the binomial theorem, and the law of sines:
http://www.teleport.com/~gmhill/materials.html
Problems (without answers) on algebra, exponential and
logarithmic functions, other functions, geometry, and
sums, sequences, and series are available:
http://www.teleport.com/~gmhill/listserv.html
The site also offers pages of useful links for teachers,
and lesson plans with activity overviews from 1998 summer
workshops at Portland and Eugene, Oregon:
http://www.teleport.com/~gmhill/portland.html
http://www.teleport.com/~gmhill/eugene.html
\/\/\/\/\/\/\/\/\/\/
GALLERY OF INTERACTIVE ONLINE GEOMETRY
The Geometry Center
http://www.geom.umn.edu/apps/
Twelve interactive online geometry programs:
 WebPisces: compute implicitly defined curves in the
plane
 Build a Rainbow: examine a mathematical model of
light passing through a water droplet
 QuasiTiler: generate Penrose tilings or design your
own nonperiodic tilings of the plane
 Kali and KaliJot: use an interactive editor to
learn about symmetric patterns of the plane
 CyberviewX: define your own 3D objects with this
interactive 3D viewer
 Projective Conics: Pascal's theorem in terms of
projective geometry: specify points on a conic and
see how the theorem applies to them
 Orbifold Pinball: explore the effects of negatively
curved space
 Teichmuller Navigator: explore the space of all
different angle geometries on a genus two surface
 Integrator: experiment with numerical integration
of data sets
 Unifweb: discover and visualize families of Riemann
surfaces
 Lafite: work with any discrete symmetry group of
the hyperbolic plane
\/\/\/\/\/\/\/\/\/\/
FEDERAL RESOURCES FOR EDUCATIONAL EXCELLENCE (FREE)
http://www.ed.gov/free/
A collection of educational resources from the Department of
Education, Department of Energy, and other federally supported
organizations. Subject listings include mathematics:
http://www.ed.gov/free/smath.html
The site also offers a search engine, favorite sites
(reviewed by users), more sites for students, comment and
feedback forms, and an invitation to be a FREE partner in
developing Internetbased learning modules and communities:
http://www.ed.gov/free/partner.html
\/\/\/\/\/\/\/\/\/\/
JUST FOR FUN: VOTE!
To show students the impact of using the Internet to collect
data, even if only a simple opinion, John Euchler asks you
to visit a page from his 7th grade class at Saint Stanislaus
Kostka School and vote on your favorite mnemonic device for
remembering the digits in the number pi:
http://bio.bio.rpi.edu/msprogram/technology2/euchler/pi.html
\/\/\/\/\/\/\/\/\/\/
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
_o \o_ __ \ / __ o _ o/ \o/
__ __/ \__/o \o  o/ o/__/ /\ / 
\ \ / \ / \ /o\ / \ / \ /  / \ / \
