# Freemason's Cipher

Can you work out how to use this code (Freemason's or Pigpen Cipher)?

Eg. A =     R =      S =     Z =

 ?

A symmetric word looks the same in the mirror; like “MOM”. Can you find any words in the Freemason's Cipher which are symmetric? What is the longest one you can find?

## A Mathematics Lesson Starter Of The Day

Topics: Starter | Problem Solving | Puzzles | Symmetry

• Transum,
•
• If you haven't seen it already we have an online Presentation on Code Cracking which introduces pupils to the basic techniques of cracking simple codes. It also encourages pupils to use technology to do a letter frequency analysis of typical English text. The presentation links into our online Code Cracking Exercise which has three levels of difficulty and awards virtual trophies each time a code is cracked.

How did you use this starter? Can you suggest how teachers could present or develop this resource? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.

Previous Day | This starter is for 8 August | Next Day

Do some online research to find out more about the Freemason's or Pigpen Cipher.

This cipher features in Dan Brown's The Lost Symbol.

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## Maths T-Shirts

Here is the URL which will take them to another code breaking activity.

Transum.org/go/?to=Code

For Students:

For All: