That Blue Square Thing

Codes & Puzzles & Data Representation

Not sure exactly how this is going to work.

1 – Substitution ciphers

Slides – web version

Slides – my version to use with some answers...

Dingbats code sheet

Cipher to break

Pup Kag code – sheet

Pup Kag code – slides

Blank code grid

Sub Cipher slide

A to Z program – runs in Python

An online substitution cipher solver

2 – Codes and communication

Slides with more ciphers

Codes to translate

Online translators:

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:

Ciphers and algorithms slides

3 – Codes and computers

Start with writing

Data representation slides – early writing

Online museum slides

Hieroglyphs slide

Then turning it into numbers – needs an intro

ASCII codes slides

Single ASCII slide

Utilities

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

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