1. Mayan Numbers

2. Basics.... 910 19 1234 56 7 8

3. Zero & Place Values 204008000

4. Place values 1’s 20’s 400’s 8000’s 8000 2800 40 6 + 10846

5. Addition + = Eight-teen Rabbit and Six Sky want to buy a new ball at the market. A ball costs cacao beans, Eight-teen Rabbit has cacao beans and Six Sky has cacao beans, together do they have enough cacao beans to buy a new ball?

6. + = 918 36034521

7. Subtraction - 450121 = 329

8. Codices “We found a large number of books in these characters and, as they contained nothing in which there were not to be seen superstition and lies of the devil, we burned them all…” - Friar Diego de Landa  Four Codices  Madrid Codex – 22 feet long contains horoscopes and almanacs.  Paris Codex – Mayan religion and zodiac, is in poor condition.  Grolier Codex – fragmented, seems to be dedicated to the cycles of Venus.  Dresden Codex – is in best condition although some damage was sustained during World War II

9. Dresden Codex 11½ ft. long and contains 74 folios with text and paintings in bright colors. 1-15: almanacs and astrology 16-23: dedicated to the Moon Goddess 25-28: details new year ceremonies 29-45: agricultural almanacs 46-50: plot the cycles of Venus stretching back 300 years 61-73: are annual flood and storm recordings 74: deals with the end of the current world cycle  Strictly business in terms of mathematics.  Invaluable in the deciphering of the Mayan written system.

10. Dresden Codex

11. Yuri Valentinovich Knorosov

12. Tatiana Proskouriakoff

13. The Calendar Round  The basic unit was the K’in or day  Each K’in was its own entity and had to be properly worshiped. The Tzolk’in or Sacred Calendar  260 days  Made up of two calendars that fit together like the gears of a clock  The first gear was a count from 1 to 13  The second gear was a series of 20 glyphs representing the god to be worshiped. The Haab or vague year  365 days  18 months each with 20 days  One 5 day month known as Wayeb was considered unlucky and dangerous

14. Long Count Calendar  Start date 0.0.0.0.0 (August 13, 3114 B.C.)  20 k’ins = 1 winal (0.0.0.1.0)  20 day  18 winals = 1 tun (0.0.1.0.0)  360 days  20 tuns = 1 k’atun (0.1.0.0.0)  7200 days  20 k’atuns = 1 b’ak’tun (1.0.0.0.0)  144,000 days  13 b’ak’tuns = new era of creation (13.0.0.0.0)  1,872,000 days 1,872,000 – 1,870,302 = 1,698 days until the next creation event. 1’s 20’s 360’s 7200’s 144000’s 1728000 136800 5400 100 2 12.19.15.5.2 (05/08/2008)