# Amazing Race Round 2

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• The Aztecs: Keeping up with Life Allison Marquez Pink
• ﻿Well, I know a few things about their calendar and number system, but that's about it.﻿
• Cool! Let's hear it!﻿
• ﻿Hello Amy! What do you know about the Aztec Indians?﻿
• ﻿The numbers in the number system were represented by dots, bars, and symbols.
• What did the numbers look like?﻿
• Did every number have its own symbol?﻿
• ﻿The numbers 1 through 4 were represented by dots, a bar represented the number 5, and other specific numbers were represented by a variety of symbols.﻿ Not every number had its own symbol, so many numbers could be made with different combinations of symbols.
• Are there any questions?﻿﻿
• ﻿There was no zero in the Aztec number system.
• ﻿Hey Kim, I got to go to this awesome museum where I learned about the aztec number system. One thing I learned was that the shell representing 20 was adopted from the Olmec number system, where it represented 0.
• Well, research shows that they had a basic understanding of it, but they just didn't have a symbol for it.﻿
• ﻿That's really cool Anna! I have one question. Did the Aztecs even know what zero was?﻿
• Did you know that not everyone used to use the same numbers and calendar? Most cultures, ﻿like the Aztecs, had their own unique number systems and calendars that helped them communicate quantities and keep track of time.
• ﻿The calendar was a massive stone carving.
• Oh, hi there Katie! How was your trip Mexico?﻿﻿
• ﻿It was awesome! I went to on this tour where we went to see different Aztec artifacts. I got to see the ancient Aztec Calendar, and I learned that It worked like a gear, with the 20 signs and 13 numbers creating different combinations.
• Sources- - https://www.math.temple.edu/~zit/Native%20America n/9%20Aztecs_num.pdf - https://prezi.com/lcvpes3cxbh1/aztec-number-sys tem/
• The calendar was called Tonalpohualli.
• What did I miss while I was on my trip?﻿
• Wow! I guess I really missed a lot! Was there anything you guys went over that I need to know about?﻿
• ﻿Well, in history, we started studying the culture of the Aztec indians. ﻿﻿We started working on a  project about their calendar.
• ﻿Sources- ﻿ - http://youngzones.org/ElaineTAMUCC/FMN/Aztec_num ber.html - https://www.math.temple.edu/~zit/Native%20America n/9%20Aztecs_num.pdf
• Conclusion
• ﻿Hello Jean! What are you doing at the library today?﻿
• Aw man! But, maybe I could help you﻿. I just happened to be doing some research of my own, and you wouldn't believe the cool things I found!
• Well, I was planning on doing some research on the Aztec calendar and number system., but I can't seem to find the book I need.
• Sources-  ﻿- https://www.ancient.eu/article/896/the-aztec-calen dar/ - https://www.azteccalendar.com/azteccalendar.html
• That's cool! In school we learned that it looked like a large, stone circle with the symbols carved into it. The teacher told us that it looked like a gear, too.
• Sources- ﻿ - www.aztec-history.com/aztec-calendar-stone.html - https://www.ancient.eu/article/896/the-aztec-calen dar/
• Mrs. Brown told us that the calendar had 260 days that were divided into 20 day periods ﻿called Trecenas. She also told us that all of the days, weeks, and years were divided equally among the Aztec gods, because they were very religious.
• ﻿﻿The Aztecs had very advanced ways of keeping up with their lives. Their number system helped them communicate values. It used symbols, and it didn't have a zero. The Aztec calendar helped them keep track of time. It was a large stone carving, and it was called Tonalpohualli.
• I would love your help! Let's go now!﻿
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