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Pi ( p) Day March 14 3/14 PowerPoint Presentation

Pi ( p) Day March 14 3/14 PowerPoint Presentation. Presented by Angela Escobar. Archimedes of Syracuse. Born: 287 BC in Syracuse, Sicily Died: 212 BC in Syracuse, Sicily

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Pi ( p) Day March 14 3/14 PowerPoint Presentation

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  1. Pi (p) Day March 143/14PowerPoint Presentation Presented by Angela Escobar

  2. Archimedes of Syracuse Born: 287 BC in Syracuse, SicilyDied: 212 BC in Syracuse, Sicily Who were the mathematicians who discovered the values of pi and used it in their mathematical works? Let’s find out through The website from the following link: http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Archimedes.html

  3. What is pi (p)?  Who first used pi?  How do you find its value?  What is it for?  How many digits is it? Let’s click on the links below to find out!!! http://mathforum.org/dr.math/faq/faq.pi.html http://mathforum.org/dr.math/faq/faq.pi.html and http://archive.ncsa.uiuc.edu/edu/RSE/RSEorange/History.html History of Pi (p)

  4. Remember what the circumference and diameter of a circle are! • The circumference is the measurement of the entire length all around the complete circle. • The diameter is the length across the entire center of the circle. • Note that the radius is half the diameter.

  5. Hands On Activity • In groups of three decide who will be the recorder, measurer, and spokesperson. • Next take a circular object that will be given to your group and measure the circumference and diameter of the object – your entire group must agree on the measurements. • Record the name of the object (example soup can) and the measurements your group found for the circumference and diameter. • Divide the circumference by the diameter and record the result in the comparison column of your chart. • What pattern do you notice about all the comparisons of the objects?

  6. Pi (p) = Circumference / Diameter Pi (p) = 3.14 d = diameter r = radius (1/2 the diameter) Circumference = p d or you can use… Circumference = 2 p r Now We Know…

  7. Formula for Area of a Circle 2 A = P r Formula for Volume of a Cylinder 2 V= P r h When do we use pi (p)?

  8. Let’s Practice! • Find the circumference of a circle whose diameter measures 12 cm. • Find the circumference of a circle who radius measures 5 feet. • Find the area of the circles from #1 and #2 • Find the volume of a cylinder where the diameter measures 20 inches and the height is 15 inches tall. • Find the volume of a cylinder whose height is 10 feet tall and had a radius that is 6 feet long.

  9. Pi (p) Trivia In the computer lab it is your mission to complete the trivia quest from the following website: http://eveander.com/trivia/ Celebrate Pi (p) Day! Make sure to send your friends pi day cards by going to this website: www.123greetings.com/events/pi/ Computer Lab Fun!

  10. Happy Pi (p) Day!!!March 143/143.14 I hope you enjoyed the lesson on pi (p) – have a piece of pie to end the activity!

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