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Aztec Mathematics

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Presentation on theme: "Aztec Mathematics"— Presentation transcript:

1 Aztec Mathematics http://2012forum.com/forum/viewtopic.php?f=20&t=2701

2 The people of the Aztec Empire were an ethic group in central Mexico who dominated from 1325-1521 AD. Their language Nahuatl is still spoken today in the mountains of Mexico. https://qed.princeton.edu/getfile.php?f=Aztec_Empire_c._1519.png

3 The Aztec civilization built large pyramids and complex cities. Their capital city Tenochtitlan was built on the site of today’s Mexico City. They were conquered by Cortez in 1521. http://www.d.umn.edu/cla/faculty/troufs/anth3618/maaztec.html

4 http://www.ancientscripts.com/aztec.html Additive number system: just add up the value of the glyphs. Notation: glyphs included a dot, flag, feather and bag of incense The Aztec used a base 20 system.

5 Face values Each notation has a face value: 1, 20, 400, 8000 Place value There are NO place values; this is not a positional system. You just add up the values of the pictures you see.

6 2009 would be written as Remember, each feather has a face value of 400, each dot has a face value of 1. There are no place values, so this system has no expanded form. All together, the symbols add up to 2009.

7 Now you try one!

8 References Aztec. Retrieved January 10, 2010, from http://en.wikipedia.org/wiki/Aztec Aztec Daily Life. Retrieved January 10, 2010, from http://atschool.eduweb.co.uk/nettsch/time/alife.html Kellermeier, J. (2009). Aztec Tribute Record Numerals. Retrieved January 10, 2010, from http://www.tacomacc.edu/home/jkellerm/EthnomathematicsText/Chapter2/2.5 AztecNumerals.htm http://www.tacomacc.edu/home/jkellerm/EthnomathematicsText/Chapter2/2.5 AztecNumerals.htm Siddiqui, A. (2004). Aztec Number System. Retrieved January 10, 2010, from http://www.math.temple.edu/~zit/Native%20American/9%20Aztecs_ num.pdf http://www.math.temple.edu/~zit/Native%20American/9%20Aztecs_ num.pdf


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