1. Kathryn Mayo
English 334

2. Sorry, Wrong!

3. History of Computer Science

4. From prehistory to computers to the internet

5. Ethnological and Psychological Origins of Numbers

6. Domestic animals notice one item missing from a small set

7. Goldfinches distinguish between piles of seed
3 and 1
3 and 2
4 and 2
4 and 3
6 and 3

8. The story of the crow

9. Childhood development
Sensory motor period
Pre-operative period
Intuitive period
Stage of concrete operations
Formal functions

10. Born with few innate abilities

11. One, two, many
Toddlers

12. Real counting only after language development

13. one, two… many Australian Yanomamo Australian Botocudos Zulu Bushmen
Vedda

14. How Cro-Magnon Man Counted

15. pebbles, shells, hard fruit, small sticks

16. 3 stages of development only lowest numbers grasped
names of the body parts start to mean something else
numbers get names
two
three
one

17. The limits of perception

18. Grouping of 5 lines found all over the world

19. Early ways of counting on the fingers

20. Knuckles and joints

21. Counting on the body

22. Morra mentioned through history
still played in Italy, Southeast France, Morocco
hua quan in China, Mongolia
Rabelais, Malherbe
Greece vases
Egyptian tombs

23. The Game of Morra

24. Numbers on Strings
quipu
Inca

25. numbers, value and money
barter
objects given a value of a certain number of debens
cheating kept money from being used
government had to take over minting money

26. Base Numbers and the Birth of Number-Systems

27. Why base 10 ?