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Frieze Patterns in Cast Iron

A gallery of beautiful photos of cast ironwork friezes in Australia with a mathematical discussion of the classification of frieze patterns.

The Frieze Tree

Patterns that repeat in a line are strangely interesting. How many types are there and how do you tell one type from another?


Some local pupils lost a geometric opportunity recently as they surveyed the cars in the car park. Did you know that car tyres, and the wheels that they on, are a rich source of geometry?

Mirror, Mirror...

Age 11 to 14
Challenge Level

If the flag is reflected twice, which way will it be facing at the end?

Thinking about the distance between the lines of reflection might help --- squared paper might be helpful for this.