Resources tagged with: Codes and cryptography

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There are 9 results

Broad Topics > Cross-curricular Contexts > Codes and cryptography

Transposition Cipher

Age 11 to 16 Challenge Level:

Can you work out what size grid you need to read our secret message?

Substitution Transposed

Age 11 to 16 Challenge Level:

Substitution and Transposition all in one! How fiendish can these codes get?

The Best Card Trick?

Age 11 to 16 Challenge Level:

Time for a little mathemagic! Choose any five cards from a pack and show four of them to your partner. How can they work out the fifth?

Secret Transmissions

Age 14 to 16 Challenge Level:

How can Agent X transmit data on a faulty line and be sure that her message will get through?

Substitution Cipher

Age 11 to 14 Challenge Level:

Find the frequency distribution for ordinary English, and use it to help you crack the code.

Keeping it Safe and Quiet

Age 14 to 18

Simon Singh describes PKC, its origins, and why the science of code making and breaking is such a secret occupation.

James's Code Challenge

Age 7 to 18 Challenge Level:

The Enigma Project's James Grime has created a video code challenge. Watch it here!

Secondary Cipher Challenge Part 1

Age 11 to 16 Challenge Level:

Here is the start of a six-part challenge. Can you get to the end and crack the final message?

Cipher Challenge Toolkit

Age 11 to 18 Challenge Level:

Our toolkit removes the drudgery of codebreaking while leaving you to do the hard thinking!