Thinkabara

💻 4th Grade · Computer Science1B-DA-06Unit 3: Data & binary

Pixels and images

Google Classroom

🎯 Objective: Students encode a picture as a pixel grid.

Lesson outline

  1. Graph-paper pixels.
  2. Encode.
  3. Swap and decode.
  4. Exit: decode a picture.

Lesson 3 of 3 in this unit. In the Lesson Planner this lesson takes 1–3 class periods depending on your timetable: day 1 introduce & model, then practice, small-group reteach and a quick check.

📐 Standard

1B-DA-06

CSTA K–12 Computer Science Standards (grade band 3–5)

🏁 Unit goals

  • Organize and present data
  • Represent information with binary

✅ Check for understanding

End with the exit ticket in the outline. Sort answers into got it / almost / not yet and start the next lesson with a 5-minute reteach for the “not yets”.

Practice & resources on Thinkabara

🦫 Encyclopedia: Coding🎹 Touch typing course⚡ Capy Live class quiz

🗓️ Plan the whole year like this

Add 4th Grade Computer Science to your free Lesson Planner: enter your timetable once and every period shows the next lesson, skipping weekends and school breaks.

Add to my planner See the year’s sequence

More lessons in “Data & binary”

  1. Binary numbers
  2. Data visualizations
  3. Pixels and images

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