Resources tagged with: Codes and cryptography

Other tags that relate to The Best Square

Angle properties of polygons. Logic. STEM - General. Practical Activity. Algorithms. Codes and cryptography. Mathematical modelling. Introducing algebra. Logo. Programming. Combinatorics.

There are 18 results

Broad Topics > Applications > Codes and cryptography

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?

Vital?

Age 16 to 18 Challenge Level:

Third challenge cipher

Ip?

Age 16 to 18 Challenge Level:

Seventh challenge cipher

Jluuis or Even Asutguus?

Age 16 to 18 Challenge Level:

Sixth challenge cipher

Semicircle

Age 16 to 18 Challenge Level:

Fourth challenge cipher

Up a Semitone?

Age 16 to 18 Challenge Level:

Fifth challenge cipher

A Fine Thing?

Age 16 to 18 Challenge Level:

Second challenge cipher

Probably a Code?

Age 16 to 18 Challenge Level:

Is the regularity shown in this encoded message noise or structure?

Stage 5 Cipher Challenge

Age 16 to 18 Challenge Level:

Can you crack these very difficult challenge ciphers? How might you systematise the cracking of unknown ciphers?

A Roman Conversion?

Age 16 to 18 Challenge Level:

First cipher

More Secret Transmissions

Age 16 to 18 Challenge Level:

In 'Secret Transmissions', Agent X could send four-digit codes error free. Can you devise an error-correcting system for codes with more than four digits?

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!

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.

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?

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?

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?

Cipher Challenge Toolkit

Age 11 to 18 Challenge Level:

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