Posts filed under ‘.9’

Engine, engine, Number Nine

Engine, engine, Number Nine,
Running on Chicago line.
If the train should jump the track,
Do you want your money back?

August 9, 2010 at 11:17 pm Leave a comment

Magic Squares

A beautiful learning puzzle from In Code: A Mathematical Journey

Here’s thekittycats story: The Magic Square, or Lo Shu

August 9, 2010 at 3:15 pm Leave a comment