2012 is the centenary of Alan Turing's birth, and as part of our
celebrations our NRICH project has a special focus this month on
codes and ciphers, with engaging mathematical activities for Key
Stages 1 right through to 5 (ages 5 to 18). Turing's astonishing
achievements included his work during the Second World War at
Bletchley Park on breaking the Enigma cipher. The NRICH code and
cipher activities have been developed in collaboration with Dr
James Grime, our Enigma Project Officer, who visits schools and
public events with a genuine Enigma cipher machine (on loan from
Simon Singh) to give talks and run hands-on workshops on the
maths of cryptography and codebreaking through history. Find all
the free codes and cipher resources on the NRICH website,
recently singled out as 'the best free website' for educational
maths resources by The Times. You can also discover more about
Turing's work with these articles from Plus, our free online
maths magazine.