Art Gallery Problem
Balancing Chemical Equations
Chess
Cryptography
Darts
Fibonacci Numbers and the Golden Section
Football Penalties
![](http://www.weebly.com/weebly/images/file_icons/pdf.png)
Modelling Football Penalty Kicks - Leela and Comissiong 2009 |
Fractals
Hexaflexagons
Infinity
![](http://www.weebly.com/weebly/images/file_icons/pdf.png)
The Hilbert Hotel (Morandi) |