Slide2:
The angle formed by rotating the initial side exactly once in the counterclockwise direction until it coincides with itself (1 revolution) is said to measure 360 degrees, abbreviated Initial side Terminal side Vertex
Slide4:
So how are we going to measure angles? If we link them to the length of a day, the stars don’t quite realign. Then how about a year? The stars do align after a year. That’s about 360 days. I’m king. Make it so…
Slide9:
Today we learned about
Positive & Negative angles in standard position
Co-terminal angles
What a degree is
Degree conversions
Why these are as they are
Slide10:
Radians
Choice of Mathematicians & Scientists
Slide11:
Image Sources
Yumigia. (December 29, 2006). The North Star. Retrieved June 22, 2008 from www.flickr.com
B.Wilson. (September 26, 2006). Aurora Borealis. Retrieved June 22, 2008 from www.flickr.com
Mor (bcnbits). (October 30, 2007). Portal del’Angel. Retrieved June 22, 2008 from www.flickr.com
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Erik. (December 28, 2007). The old library. Retrieved June 22, 2008 from www.flickr.com
Danielkhc. (February, 25, 2007). Inverted vertigo. Retrieved June 22, 2008 from www.flickr.com
Bitzi. (June 6, 2006). Pea boat. Retrieved June 22, 2008 from www.flickr.com
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Garry. (January 27, 2008). Even in the quietest moments. Retrieved June 22, 2008 from www.flickr.com
Imapix. (February 23, 2007). Morpho. Retrieved June 22, 2008 from www.flickr.com
Haribi’s photos. (May 16, 2004). Old blue eyes. Retrieved June 22, 2008 from www.flickr.com
Axel-. (November 15, 2006). Leaf veins. Retrieved June 22, 2008 from www.flickr.com
Walkabout wolf. (November 14, 2005). Call of the ravin (formally nature’s special effects). Retrieved June 22, 2008 from www.flickr.com
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Mharrsch. (March 29, 2006). Louvre reproduction of the Law code of Hammurabi monolith originally produced between 1792 and 1750 BCE(1). Retrieved June 22, 2008 from www.flickr.com
Slide12:
Image Sources continued
Azem. (March 19, 2007). Star Trails. Retrieved June 22, 2008 from www.flickr.com
MeirionMetthias. (May 7, 2007). United we stand. Retrieved June 22, 2008 from www.flickr.com
CDavy. (March 29, 2008). Spadina house – Empty Jar JPG. Retrieved June 22, 2008 from www.flickr.com
MrMark. (July 29, 2007). Crystal room. Retrieved June 22, 2008 from www.flickr.com
Cobolt 123. (February 11, 2008). Blue purple red: amethyst crystals. Retrieved June 22, 2008 from www.flickr.com
Cobolt 123. (April 1, 2007). Glowing crystals, quartz giant. Retrieved June 22, 2008 from www.flickr.com
Sound Sources
Microsoft. (September 26, 2003). Cooing baby – J0388205. Retrieved June 23, 2008 from www.microsoft.com
Microsoft. (September 26, 2003). Lamb calling – J0388468. Retrieved June 23, 2008 from www.microsoft.com
Microsoft. (March 27, 2003). Cairo market – J0074678. Retrieved June 23, 2008 from www.microsoft.com
Microsoft. (September 26, 2003). Grand gong – J0388339. Retrieved June 23, 2008 from www.microsoft.com
Music Source
Jamie Janover. (April 24, 2004). Triangle in square. Evolutions. Retrieved June 22, 2008 from www.magnatune.com