This article for the young and old talks about the origins of our number system and the important role zero has to play in it.
A Romantic Riddle
Age 7 to 11 Challenge Level
I ask you, sir, to plant a grove
To show that I'm your lady love.
This grove, though small, must be composed
Of twenty-five trees in twelve straight rows.
In each row five trees you must place
Or you shall never see my face.
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice.