WALT:
Representing data
WILF:
All: Write simple messages in code.
Most: Create our our key to be deciphered by someone else.
Some: Will be able to create and use different cipher wheels to encrypt and decipher messages.
Representing data
WILF:
All: Write simple messages in code.
Most: Create our our key to be deciphered by someone else.
Some: Will be able to create and use different cipher wheels to encrypt and decipher messages.
Encoding a word or phrase is an example of representing data in a different way.
The practice of encoding (enciphering, encrypting) and decoding (deciphering, decrypting) is called cryptography.
Two simple ways of encoding are the ‘backwards alphabet code’ and the 'shifted alphabet code’. They are easy to code but equally easy to decode ('crack').
Knowing the ‘key’ helps the decoder translate the message.
What is data?
Why do we collect data?
The practice of encoding (enciphering, encrypting) and decoding (deciphering, decrypting) is called cryptography.
Two simple ways of encoding are the ‘backwards alphabet code’ and the 'shifted alphabet code’. They are easy to code but equally easy to decode ('crack').
Knowing the ‘key’ helps the decoder translate the message.
What is data?
Why do we collect data?
QR Codes
A QR code is another way to represent data. QR stands for Quick Response.
It is a scannable barcode-like image that directs you to a particular digital location set up by the code-creator.
To read the code you need an app that reads QR codes and the camera on a smartphone or tablet device.
The barcode image is made up of pixels. Each pixel is made up of its own colour. In the case of QR code it is either black or white.
A Pixel
A pixel (short for picture element) is a single point in a picture. On the monitor of a computer, a pixel is usually a square. Every pixel has a colour and all the pixels together are the picture.
A QR code is another way to represent data. QR stands for Quick Response.
It is a scannable barcode-like image that directs you to a particular digital location set up by the code-creator.
To read the code you need an app that reads QR codes and the camera on a smartphone or tablet device.
The barcode image is made up of pixels. Each pixel is made up of its own colour. In the case of QR code it is either black or white.
A Pixel
A pixel (short for picture element) is a single point in a picture. On the monitor of a computer, a pixel is usually a square. Every pixel has a colour and all the pixels together are the picture.
Miss Sampey will show you how to make a QR Code.
Try your own QR code.
Your task:
- Use your Caesar Cipher to create a secret message.
- Create a text QR code for your message - Don't forget your key.
- Take a photo of your Caesar Cipher with it set up for your key.
- Put your photo in Google Drive folder - Make sure you name it correctly.
- Copy the link for the photo.
- Create QR code.
- Send both QR codes to Google Classroom for Miss Sampey to print for you.