1. Origins of Mathematics By Rachel Cortez 8/30/2011

2. Common Links to Numbers: Numbers assign value; Basis for communication; Basis for trade;

3. How did counting emerge? Need based; Cardinal need “How much do I have?”; Ordinal need – “Dominance hierarch” “Who goes first?”;

4. Need for a record-keeping system Created by tribes who Had fertile lands; Flourished along major rivers; Strong centralized government Strong religious life;

5. Tally System Tribes kept a system that fit their needs Babylonians used clay tablets; Paraguayan Tribe (18 th Century) used a geometric approach; The Dammara’s (19 th century) traded sticks of tabacco for cattle; The Inca’s used multi-colored cords or beads still used today by Bolivian Herdsmen;

6. Numbers and Religion Hindu’s worship of stars; Pueblo Indians prepared 8 days for the Snake Dance; Apache Indians prayed once every 4 days; Potawatomi Tribe used the number 4 as a marker to light the chief’s pipe to determine guilt or innocence

7. Native Americans & Mathematics Artifacts indicate their way of life but the method of constructed temples; Geometric shapes fill art work; Patterns are unique to the region; “Mounds” were created for burial, ceremonial or residential purposes

8. ETOWAH INDIAN MOUND Bartow County, Georgia

9. The Great Serpent Mound Map Southwest Ohio, about 1,330 feet long and 3 feet high

10. The Great Serpent Mound Adams County, Ohio, a few hours from Dayton

11. Navajo Water Blanket

12. INCA Wool Blanket

13. THANK YOU