Secret Codes

For thousand of years codes and ciphers have been used to keep important information secret. Codes can also be a fun and engaging way to let learners play with numbers.

The following PowerPoint presentation gives a brief introduction to the history of codes and codebreaking, and illustrates a number of simple codes. There are also practical activities suitable for Primary and Secondary learners.

Powerpoint file: Secret Codes (426 KB)

Please feel free to save and edit the Secret Codes PowerPoint to suit your individual learners.