PI Day- March 14th

March 14th was PI Day….

If you are looking for A Brief History of π     check out the sites below.

http://www.exploratorium.edu/pi/history_of_pi/index.html

 http://mathforum.org/t2t/faq/faq.pi.html

50 Interesting Facts … http://facts.randomhistory.com/2009/07/03_pi.html

  1. Pi is the number of times a circle’s diameter will fit around its circumference
  2. There is no zero in the first 31 digits of Pi
  3. Pi has 6.4 billion known digits – it would take a person approximately 133 years to recite all of them without stopping
  4. At position 763 (known as Feynman Point), there are six nines in a row
  5. Some people believe Pi contains the answers of the universe. (But on some days, a slice of pie holds all the answers to the universe!)
  6. It took nine hours for the Memorized-Digits-of -Pi world record holder to recite over 44,000 digits
  7. Pi Day (March 14) is also Albert Einstein’s birthday!
  8. Pi is irrational — no, not like my mother. An irrational number is one that cannot be expressed as a ratio of integers
  9. Johann Lambert proved Pi is irrational in 1768
  10. The symbol for Pi (π) has been used regularly for 250 years
  11. Pi has been studied by the human race for 4,000 years
  12. Many mathematicians claim that it is more correct to say the a circle has an infinite number of corners than to view a circle as cornerless. Stop and think about that for a second.
  13. Pi was first calculated by Archimedes of Syracuse. He was reportedly so engrossed in his work that he did not notice when the Roman soldiers conquered the city of Syracuse. When a Roman soldier approached Archimedes, he yelled in Greek “Do not touch my circles!” The Roman soldier quickly cut off his head and moved on.
  14. If you printed a billion decimals of Pi in ordinary font it would stretch from New York City to Kansas. We recommend you don’t try and print out Pi!

A few March sites….

March Front Page  http://nrich.maths.org/public/

March Theme Units   http://edhelper.com/March.htm


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About musingsofamathteacher

I am presently employed at New Sarepta Elementary School as a grade five teacher. During my career I have taught Grades 12 - 2. The past three years I was fortunate to work part-time as Math Lead for my school district, Black Gold Regional Schools, and have just recently accepted a part-time secondment with Edmonton Regional Learning Consortium. I have always had a passion for mathematics and am excited about implementing Alberta's "new" mathematics curriculum.
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