DLCS18.HS.29

Digital Literacy and Computer Science (2018) Grade(s): 09-12

DLCS18.HS.29
Summarize the role of compression and encryption in modifying the structure of digital artifacts and the varieties of information carried in the metadata of these artifacts.

Unpacked Content

Knowledge

Students know:

that when a file is altered in any way, changes may be seen in the file metadata.
compression and encryption are two methods used when sharing data.

Skills

Students are able to:

explain the roles of compression and encryption.
summarize the effects of compression and encryption on the metadata of a digital artifact.

Understanding

Students understand that:

any process applied to data has the potential to alter the structure of the data.
it is important to be aware of potential changes to data structure when electing to use a process.

Vocabulary

compression
encryption
metadata

Aligned Learning Resources

Computer Science Principles Unit 2 Chapter 1 Lesson 3: Encoding B&W Images (2018)

Computer Science Principles Unit 2 Chapter 1 Lesson 6: Rapid Research - Format Showdown

Public Encryption Key

Coding - Introduction

Coding - Compression

Someone Could Listen

Educational Technology: Crash Course Computer Science #39

Files & File Systems: Crash Course Computer Science #20

Compression: Crash Course Computer Science #21

Quantum Cryptography Explained

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