1. 0123456… 1 2 4 5 The Numbers

2. The numbers we write are made up of algorithms, (1, 2, 3, 4, etc) called arabic algorithms, to distinguish them from the roman algorithms (I; II; III; IV; etc.). 1 2 4 5 0123456…

3. 1 2 4 5 The arabs popularised these algorithms, but their origin goes back to the Phoenician merchants who used them to keep track of their commercial activities – their profits and losses. 0123456…

4. 1 2 4 5 Have you ever asked the question why this figure 1 is “one”, this 2 is “two”, 3 is “three”…..? 0123456…

5. 1 2 4 5 What is the logic behind the arabic algorithms? 0123456…

6. 1 2 4 5 It’s Easy, very easy…! Count the angles! 0123456…

7. 1 2 4 5 When we look at the algorithms in their most primitive form – composed only of straight lines -- we see why 1 means one … 0123456…

8. 1 2 4 5 1 angle 2 angles 3 angles 4 angles

9. 1 2 4 5 5 angles 6 angles 7 angles 8 angles

10. 1 2 4 5 9 angles

11. 1 2 4 5 And the most interesting and intelligent of all…..

12. 0123456… 1 2 4 5 Zero angles!

13. 1 2 4 5 Moral of the story: It’s never too late to learn something new & amazing about numbers!