Cracking the Enigma Code - Full Lesson
Written for Yr 9 but accessible to older and younger students, this lesson introduces the students to the work of Bletchley Park and the British code breakers of WWII.

Students will watch the film attached as an introductory briefing. This will be a race against time to re-route a vital Allied convoy around Nazi German U-Boats. Its safe arrival being essential to Britain's ability to carry on the war:

Students must break three codes to generate a three letter password that will reveal the instructions on how to locate the German U-Boats by opening the locked word doc 'settingtheenigma.doc' .

***You will need to review and edit where necessary, these codes to ensure they suit your circumstances before teaching the lesson. ****

This will inform them to e-mail you, their teacher, the U-Boat commander. Upon replying and breaking radio silence you will betray your location and allow to the convoy to arrive safely in the UK.

All three tasks can be amended to suit your needs and level of challenge:

Task 1 - Requires the students to follow a link to a Flash enabled website. A completed screen shot is included in the lesson plan. You can substitute my code for one of your own
Task 2 - Is based upon a Mensa test, with screen shot included again in the lesson plan.You can substitute my code for one of your own
Task 3 - Informs students to carry out a specific task in order to find the last letter. You will almost certainly have to amend the instructions in the message to suit your circumstances
Save for later
  • Enigma.mp4
  • settingtheenigma.doc
  • The-Enigma-Code.ppt
  • Lesson-Plan-Enigma.doc

About this resource


Created: Mar 21, 2017

Updated: Feb 22, 2018

mp4, 12 MB


doc, 375 KB


ppt, 1 MB


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