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# Interesections presentation

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Intersections presentation

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• Further explanation of what intersections is on this slide, explain who we are, what we’re doing, purpose etc… explain purpose of video, Possible shout out to Sam aviles?Giving all that information on one slide would feel like just reading off the presentation
• Explain this is where the journal will be published when it is complete, give a shout out to Mac maybe?! Explain what we have on the website, information, forms etc. E-mail us if you have questions
• ### Interesections presentation

1. 1.  Club performs experiment or completes project  Writes article or description  Includes pictures if applicable Math club builds hexaflexagons!  Flexagons are flat models, usually constructed by folding strips of paper, that can be folded in certain ways to reveal faces besides the two that were originally on the back and front
2. 2.  A photograph that illustrates a mathematical concept or shape with description of photograph TriangleVertical Angles Right AngleMajor Arc Concentric Circles
3. 3.  “Periodic Table of What?!” with description of modern periodic table and how your table is designed to show similar trends in “properties” of “elements”
4. 4. Pi denotes the ratio of the circumference of acircle to its diameter. It is an irrational number, meaningthat it cannot be expressed as a ratio of two integers.Approximation of pi began in the second millennium BC.No single mathematical subject can trace its history as farback as pi. The ancient Babylonians calculated the area ofa circle by taking three times the square of its radius,which gave a value of pi as 3. One Babylonian tablet,which dates back to approximately 1900-1680 BC,indicates a value of 3.125 for pi. The ancient Egyptiansalso used measurement to give pi the approximate valueof 3.1605 around 1650 BC. The first calculation of pi came around 287-212 BC and was done by Archimedes of Syracuse. Heapproximated the area of a circle by using thePythagorean Theorem to find the area of two regularpolygons, one inscribed within the circle and one inwhich the circle was circumscribed. He knew that thearea of the circle lied between these two values, so heshowed that pi was between 31/7 and 310/71. Mathematicians first began using the Greekletter π in the 1700s when it was introduced by WilliamJones. The use of the symbol later became popularized byLeonhard Euler, who adopted it in 1737. Even today mathematicians continue to seekmore accurate approximations of pi, largely however, onlyto break records. They have discovered new approachesthat, when combined with great computational power,extended the decimal representation of pi to over 10trillion digits.
5. 5. Biology student’s piece on renewable energy
6. 6.  http://packerintersections.wordpress.com/ Submissions  Raphael Santore (rasantore@packer.edu) Questions  Raphael Santore  Brynna Downey  Bartow Weiss  Keegan Mendez
7. 7. Thankyou!