That Blue Square Thing

Codes & Puzzles & Data Representation

Not sure exactly how this is going to work.

1 – Substitution ciphers

PDF iconSlides – web version

PDF iconSlides – my version to use with some answers...

PDF iconDingbats code sheet

PDF iconCipher to break

PDF iconPup Kag code – sheet

PDF iconPup Kag code – slides

PDF iconBlank code grid

PDF iconSub Cipher slide

Text file iconA to Z program – runs in Python

An online substitution cipher solverwiki link

2 – Codes and communication

PDF iconSlides with more ciphers

PDF iconAbout Braille

PDF iconAbout BSL

PDF iconAbout Morse

PDF iconAbout Semaphore

PDF iconTask to complete

PDF iconSemaphore code

Codes to translate

PDF iconBSL sheet

PDF iconBraille sheet

PDF iconMorse sheet

PDF iconSemaphore sheet

Online translators:

Braille translator

Another Braille translator

BSL translator

Semaphore translator

Another Semaphore translator

Morse translator

Examples

Videos page – morse and semaphore

Very simple morse code word

Simple morse code word

Fast morse code

Then algorithmic thinking:

PDF iconCiphers and algorithms slides

3 – Codes and computers

Start with writing

PDF iconData representation slides – early writing

PDF iconOnline museum slides

PDF iconMuseum treasure hunt

PDF iconHieroglyphs slide

Then turning it into numbers – needs an intro

PDF iconASCII codes slides

PDF iconSingle ASCII slide (long)

PDF iconSingle ASCII slide (short)

PDF iconASCI key (1 slide)

PDF iconSymbol slides

4 – Binary numbers

Most of the resources for this are currently in a Year 7 Computers unit.

PDF iconHow many binary numbers task

PDF iconBinary conversions 1

PDF iconBinary conversions 2

5 – Bits and bytes

Conversions.

PDF iconBinary conversions 3 – for revision

PDF iconSlides – prefixes

PDF iconTable to complete

PDF iconPrefix conversions

PDF iconASCII and binary

PDF iconSpreadsheet task

6 – Caesar and steganography

To go alongside and assessment.

PDF iconCaesar cipher slides

PDF iconPrintable slides

Utilities

Letter frequency analysis – useful information for solving codes such as PUP KAG

Text analysis tool – will report letter frequency in a given phrase