Freemason's Cipher

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

Pigpen Cipher

Eg. A = a    R = r     S = s    Z = z

Coded letter Coded letter Coded letter Coded letter Coded letter Coded letter Coded letter
Coded letter Coded letter Coded letter Coded letter Coded letter Coded letter Coded letter Coded letter Coded letter Coded letter ?

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

Share your findings here!


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.

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Check your symmetric words here:

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.

Casio Classwiz Calculator

There is currently a lot of talk about this new calculator being the best in its price range for use in the Maths classroom. The new ClassWiz features a high-resolution display making it easier to view numerical formulas and symbols but it isn't a graphical calculator as such (it has the capacity to draw graphs on your smart phone or tablet, via a scannable QR code and an app).

As well as basic spreadsheet mode and an equation solving feature you also get the ability to solve quadratic, cubic or quartic polynomial inequalities and the answer is given just as it should be written down, using the correct inequality symbols!

This calculator has a high-performance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more...

Online Maths Shop

Laptops In Lessons

Teacher, do your students have access to computers?
Do they have iPads or Laptops in Lessons?

Whether your students each have a TabletPC, a Surface or a Mac, this activity lends itself to eLearning (Engaged Learning).

Laptops In Lessons

Here a concise URL for a version of this page without the comments.

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

Student Activity



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