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Understanding Cryptography

What am I Learning today?

I am learning how to define what encryption and decryption means
I am learning how to describe what a cipher is and how they are used
I am learning how to encrypt and decrypt a message
I am learning how to explain the importance of 'Keys' in cryptography

Knowledge Organiser

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Lesson

Task 1 - Getting Organised - PowerPoint Click to see more

  1. Set your Learning Objectives to red.

  2. We are going to save all of our work into a PowerPoint.

  3. To download the PowerPoint by clicking on the image below


  4. Save your PowerPoint as 'Programming 1'


Task 2 - Solving a puzzle Click to see more

  • Go to the slide in you powerpoint like the image below and try and crack the code
  • Also do a little research and see what you can find out about the importance of being able to decrypt a message

  • Task 3 - Encryption and Decryption Click to see more

  • Research and define the word ENCRYPTION
  • Research and define the word DECRYPTION
  • Go to the slide in you powerpoint like the image below and do a little research.



  • Task 4 - Ciphers Click to see more

  • Cipher comes from the Arabic sifr, which means "nothing" or "zero."
  • Do some research of your own to find out what a cipher means today and what the Roman Caesar has got to do with it.

  • Task 5 - Caesar Cipher decryption Click to see more

  • Let's see if we can decode a message using the Caesar Cipher wheel

  • When you are finished don't forget to save your your powerpoint

  • Task 6 - Caesar Cipher encryption Click to see more

  • Let's see if we can now encode a message using the Caesar Cipher wheel

  • Caesar-cipher Tasks

  • When you are finished don't forget to save your your powerpoint

  • Task 7 - Lesson review Click to see more

    Summing it all up

    Lets look at the learning outcomes and decide which one best describes our current level of understanding :

    Tick the one you feel is closest to your level

    Learning Outcomes I need to learn how to define what encryption and decryption means

    • I have a basic understanding of how I can define what encryption and decryption means with a little help from my teacher
    • I can show my teacher that I can define what encryption and decryption means without their help.
    • I can define what encryption and decryption means independently and I can also explain it to others and can complete any extension tasks I am given.

    🠜 Now update your learning objectivesClick on the Assessment image

    My Notes: cryptography

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    Task Notes/Comments - Add here Click to see more

    Comments/Notes

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