CS Principles 2018

Unit 2

Resources

Unit 2 - Digital Information

Lesson 1: Bytes and File Sizes
Resources Prep

For the Teacher

For the Students

  • You should verify that you know how to look at the sizes of files on computers that your students are using (see activity).
  • For the getting started activity might want a Word processing program (such as MS Word) and plain text editor (such as Notepad or TextEdit) open and ready.
  • The teaching remarks and content corners in this lesson contain lots of little bits of history that you might choose to share at various points in the lesson.
Lesson 2: Text Compression
Resources Prep

For the Teacher

For the Students

  • Test out the Text Compression Widget
  • Review the teaching tips to decide which options you want to use
Lesson 3: Encoding B&W Images
Resources Prep

For the Teacher

For the Students

  • (Optional) Graph or grid paper for drawing pixel images by hand
Lesson 4: Encoding Color Images
Resources Prep

For the Teacher

For the Students

  • (Optional) Consider demonstrating the color pixelation widget instead of showing the video.
Lesson 5: Lossy vs. Lossless Compression
Resources Prep

For the Teacher

For the Students

  • Prepare print or digital copies of File Formats and Compression Activity Guide
Lesson 6: Rapid Research - Format Showdown
Resources Prep

For the Students