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- The
Topic:
- Pi
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- Easier - Pi sounds
like pie and is equal to about 3.1416. In math,
this is the ratio of the circumference of a circle
to its diameter. In other words, pi is a number
that equals the quotient of the circumference of a
circle divided by its diameter. Many people
celebrate pi by holding a Pi Day on March 14th or
3/14.
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- Harder - The Greek
letter pi represents the number by which the
diameter of a circle must be multiplied to obtain
the circumference. Pi is an irrational number. That
is, it cannot be written as a simple fraction or as
an exact decimal with a finite number of decimal
places. However, you can increase the number of
digits until you reach a number as near to pi as
needed. Mathematicians with computers have
calculated pi to millions of decimal places.
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- Pi is used in several mathematical
calculations. The circumference of a circle can be
found by multiplying the diameter by pi (c = pi X
d). The area of a circle is yielded by multiplying
pi by the radius squared (A = pi X r-squared). Pi
is also used to calculate the area of a circle, and
the volume of sphere or a cone.
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- Math
Library - Pi from The Math Forum, Drexel
University
- http://mathforum.org/library/topics/pi/
- This huge site provides information and links
to all kinds of information on the number pi.
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- Pi
Mathematics
- http://archive.ncsa.uiuc.edu/Edu/RSE/RSEorange/buttons.html
- Find out the history of this odd number and
discover some fun projects and activities you can
do with pi.
- Related Websites:
- 2) Finding the Value of Pi http://mathforum.org/isaac/problems/pi1.html
- 3) History of Pi
- http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Pi_through_the_ages.html
- 4) Joy of Pi by D. Blatner http://www.joyofpi.com/
- 5) Pi Pages http://www.cecm.sfu.ca/pi/
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- Ridiculously
Enhanced Pi Page from
Exploratorium
- http://www.exploratorium.edu/learning_studio/pi/
- Here you have information about 'Pi Day',
music, beads, and pie!
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- Web
Page Dedicated to Pi
- http://www.wpdpi.com/index.shtml
- This site has lots of great information on pi
and was once featured in an article in the San
Francisco Examiner, Partying
for Pi by G. Smith.
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- Websites By Kids For Kids
- Dale's
Pi Page by D. Winham
- http://www.geocities.com/SiliconValley/Pines/5945/
- Here you find facts, news, history, notes,
digits, songs, jokes, charts, poems, links and a
program for pi.
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- More Pi Pages
- Archimedes
and the Computation of Pi from
University of Utah
- http://www.math.utah.edu/~alfeld/Archimedes/Archimedes.html
- Learn more about Archimedes (approximately
285---212 B.C.), the famous ancient Greek
mathematician and inventor.
- Related Websites:
- 2) Archimedes' Approximation of Pi
- http://itech.fgcu.edu/faculty/clindsey/mhf4404/archimedes/archimedes.html
- 3) Archimedes Constant http://www.mathcad.com/library/constants/pi.htm
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- Digits
of Pi
- http://www.cecm.sfu.ca/projects/ISC/data/pi.html
- This site provides pi to 10,000 digits and
50,000,000 digits.
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- Frequently
Asked Questions About Pi from Dr. Math at
the Math Forum
- http://mathforum.org/dr.math/faq/faq.pi.html
- What is pi? Who first used pi? How do you find
it? How many digits is it?
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- Incredible
Pi Code from I. Perterson's
MathTreck, Mathematical Association of
America
- http://www.maa.org/mathland/mathtrek_4_1_00.html
- This article focuses on codes derived by the
substitution of letters of the alphabet for the
digits.
- Other Related Articles:
- 2) Eskimo Pi by K. Devlin from the
Mathematical Association of America
- http://www.maa.org/devlin/devlin_2_97.html
- 3) Passion for Pi by I. Peterson from the
Mathematical Association of America
- http://www.maa.org/mathland/mathland_3_11.html
- 4) Story of Pi by L. Mudehwe http://www.geocities.com/CapeCanaveral/Lab/3550/pi.htm
- 5) Slice of Pi, Anyone? by J. Shepler http://www.execpc.com/~shepler/piday.html
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- Paul's
Page of Pi
- http://www.escape.com/~paulg53/math/pi/
- Most of the content of the site is focused on
methods of calculating pi.
- Related Websites:
- 2) Pi Pages http://www.cecm.sfu.ca/pi/pi.html
- 3) Slice of Pi by M.D. Huberty, K. Hayashi,
& C. Vang
- http://www.geom.umn.edu/~huberty/math5337/groupe/
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- Pi
Irrationality Proof from Robert's Neat
Math Pages
- http://www.math.clemson.edu/~rsimms/neat/math/piproof.html
- This site has a proof of how pi can be defined
as an irrational number.
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- Pi
Page by R.W. Clickery
- http://www.ccsf.caltech.edu/~roy/upi/pi.html
- Here you have a 'mere' 50,000 digits of pi, a
few software programs for computing, and some
quaint facts about pi.
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- St. Louis
Pi Day by T. Chun, C. Daniel, and J.P.
Kanoa
- http://planetpi.8m.com/
- Learn how this school celebrates the great
number of pi.
- Similar Website:
- 2) Middle School Pi Day by S. Haddad and
A.Owens from Germantown Academy
- http://www.ga.k12.pa.us/academics/MS/PiDay/Index.htm
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- Partying
for Pi by G. Smith from the San
Francisco Examiner
- http://www.sfgate.com/cgi-
- bin/article.cgi?file=/examiner/archive/1999/03/14/BUSINESS13807.dtl
- Here is an online newspaper article about pi
and pi day celebration.
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- Websites For Teachers
- Circles
in Geometry (Grades 4-6)
- http://www.teachnet.com/lesson/math/geometry/circlesingeo.html
- Grade school geometry doesn't have to get into
a detailed lesson on pi to communicate the basics
of this constant.
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- Chronological
History of Pi with Developmental Activities in
Problem Solving (Grades 7-10) by A.P. Solli
from Yale-New Haven Teachers Institute
- http://www.cis.yale.edu/ynhti/curriculum/guides/1980/7/80.07.11.x.html
- The unit begins with a historical development
of pi and proceeds with examples of activities to
help students develop a deeper appreciation of the
mathematical value of pi.
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- Discovering
Pi (Grades 5-7) by J. Eckley from
AskERIC
- http://ericir.syr.edu/Virtual/Lessons/Mathematics/Geometry/GEO0001.html
- This activity allows students to discover why
pi works in solving problems dealing with finding
circumference.
- Related Lesson:
- 2) Introduction to Pi and the Area of a Circle
(Grades 5-7) by E.R. Justice
- http://www.iit.edu/~smile/ma96m4.html
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- Pi
Day Celebration from The Math Forum,
Drexel University
- http://mam2000.mathforum.org/t2t/faq/faq.pi.html
- Here are some activities you can use for a 'Pi
Day' celebration on March 14 (3.14)?
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- Proving
Pi (Grades 8-10) by G.D Williams
- http://www.iit.edu/~smile/ma8719.html
- This activity has students discovering the pi
ratio by completing a circles activity.
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- What
is Pi? by M. Kelley
- http://www.middleweb.com/INCASEpi.html
- Here you find activities to explore the meaning
of pi.
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- Created by
Annette
Lamb and
Larry
Johnson,
2/02.
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