# 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

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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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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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## Hello World

You are buying a (driverless) car. One vehicle is programmed to save as many lives as possible in a collision. Another promises to prioritize the lives of its passengers. Which do you choose?

Welcome to the age of the algorithm, the story of a not-too-distant future where machines rule supreme, making important decisions – in healthcare, transport, finance, security, what we watch, where we go even who we send to prison. So how much should we rely on them? What kind of future do we want?

Hannah Fry takes us on a tour of the good, the bad and the downright ugly of the algorithms that surround us. In Hello World she lifts the lid on their inner workings, demonstrates their power, exposes their limitations, and examines whether they really are an improvement on the humans they are replacing. more...

 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).

Transum.org/go/?Start=August8

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

Transum.org/go/?to=Code

For Students:

For All: