Saturday 16 January 2021

Ultimate Pi Day - Thornhill School Ultimate Pi Day

Posted by Louise Meah at 11:09AM on 12 March 2015
pi picture

Pi Day falls on March 14th every year and is celebrated around the world but for the first time in a century, the date of Pi Day will include the first five digits of Pi - 3/14/15.

If you want to take it even further Pi Day will have special significance at 9:26:53 on March 14th, with the date and time representing the first 10 digits of Pi (3.141592653)

What is Pi?

Pi is the Greek letter "∏" and is the symbol used in mathematics to represent the ratio of the circumference of a circle to its diameter which is approximately 3.14159265359. It is commonly referred to as 3.14, hence why Pi Day is celebrated on March 14th, or 3/14.

Pi will always be the same, no matter what the size of the circle that is why it is referred to in mathematical terms as a constant.

To celebrate the mathematical constant on March 14th Thornhill pupils from Year 7 to 11 will be carrying out ∏ related activities and investigations.

Like to discover Pi?

Here is an investigation that you could have a go at yourself at home. Take a round object and place a piece of string from one edge of the circle to the other. The string must pass through the midpoint of the circular object (this is the diameter). Cut the string so that it is the same length of the diameter. Now take this length of string and place it around the outside of the circle (this is the circumference). See how many times you can fit this length of string around the circumference.

Try this with other round objects of different sizes and compare the results. Do you notice anything?

Pi and Pi Day related facts:

  • The number ∏ (3.14159265358979323 ...) has no patterns, it never ends and it has been calculated to more than 1 trillion digits past the decimal point.
  •  The first 1000000 decimal places contain: 99959 Zeros, 99758 Ones, 100026 Twos, 100229 Threes, 100230 Fours, 100359 Fives, 99548 Sixes, 99800 Sevens, 99985 Eights and 100106 Nines.
  • There are no occurrences of the sequence 123456 in the first million digits but of the eight 12345s three are followed by another 5.
  • March 14th is also Albert Einstein's birthday
  • If a mirror is held up to 3.14, the reflection spells “pie”.

Mathematic Teacher Photographs 001Mathematic Teacher Photographs 003Mathematic Teacher Photographs 004Mathematic Teacher Photographs 008


At 10:26AM on 16 Mar 2015, ariful islam said...
I want a calculator
At 10:27AM on 16 Mar 2015, Hello said...
At 10:44AM on 16 Mar 2015, roshan jacob said...
wew looks class
At 2:49PM on 23 Mar 2015, Harry Craig said...
Looks very enjoyable
At 11:27AM on 24 Mar 2015, carly stephenson said...
omg malayaka it looks so fun and claire looks like she is having fun
At 9:36AM on 27 Mar 2015, Roshan Jacob said...
I played pi on my calculator all day!! it was fun!!
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