Classroom Resource

What Is Cryptography?

Subject Area

Digital Literacy and Computer Science

Grade(s)

3, 4, 7, 8

Overview

What is Cryptography? A story which takes us from Caesar to Claude Shannon. Created by Brit Cruise.

On the left side of the linked webpage, there are additional resources related to cryptology, including Caesar cipher, polyalphabetic cipher, and the Enigma machine.

Digital Literacy and Computer Science (2018) Grade(s): 3

DLCS18.3.1

Use numbers or letters to represent information in another form.

Unpacked Content

UP:DLCS18.3.1

Vocabulary

  • encryption
  • secret codes

Knowledge

Students know:
  • techniques for understanding how to representing information in another way using numbers or letters.

Skills

Students are able to:
  • use letters or numbers to represent information in another form.
  • use a secret code to determine information represented in letters and/or numbers.

Understanding

Students understand that:
  • numbers and/or letters can represent information in another way.
Digital Literacy and Computer Science (2018) Grade(s): 4

DLCS18.4.1

Construct a basic system of numbers, letters, or symbols to represent information as a cipher.

Unpacked Content

UP:DLCS18.4.1

Vocabulary

  • basic system of numbers
  • symbols
  • represent information
  • cipher

Knowledge

Students know:
  • a basic system of numbers, letters, or symbols can represent information as a cipher.

Skills

Students are able to:
  • construct a basic system of numbers, letters, or symbols to represent information as a cipher.

Understanding

Students understand that:
  • a basic system of numbers, letters, or symbols can represent information as a cipher.
Digital Literacy and Computer Science (2018) Grade(s): 7

DLCS18.7.9

Identify common methods of securing data.

Unpacked Content

UP:DLCS18.7.9

Knowledge

Students know:
  • data needs to be shared but not altered.

Skills

Students are able to:
  • identify measures to secure data.

Understanding

Students understand that:
  • data may need to be protected either physically or digitally.
Digital Literacy and Computer Science (2018) Grade(s): 8

DLCS18.8.22

Encrypt and decrypt various data.

Unpacked Content

UP:DLCS18.8.22

Vocabulary

  • encrypt
  • decrypt

Knowledge

Students know:
  • cyphers can be used to encrypt and then decrypt a message.
  • that computers use complicated cyphers to keep data safe when being transmitted electronically.

Skills

Students are able to:
  • either physically or digitally encrypt and decrypt data.

Understanding

Students understand that:
  • some data needs to be protected as it is transmitted digitally.
Link to Resource
https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/int…

CR Resource Type

Informational Material

Resource Provider

Other

Resource Provider other

Khan Academy
Accessibility

Accessibility

Video resources: includes closed captioning or subtitles
License

License Type

CUSTOM

Custom License Type (URL)

https://www.khanacademy.org/about/tos

Approved Date

ALSDE LOGO

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