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In this activity, learners will explore how computers represent pictures using pixels. Starting with a blank grid, learners will use a code to color in some squares on the paper and leave others blank. In the end, they will have created a picture similar to how a computer does. This activity includes step-by-step instructions with pictures, an explanation of the computer science behind the activity, and optional extensions.
- Under 5 minutes
- 10 to 30 minutes
- 1 cent - $1 per student
- Ages 6 - 14
- Activity
- English
Quick Guide
Materials List (per student)
- A pencil (ideally 2B or heavier), or a dark pen, felt-tip marker or dark crayon. A pencil is easier in case you want to erase mistakes.
- Printable large grid paper & picture code
- Printable small grid paper (6 on one page) - these require more precision
- Optional: Make your own grid with graph paper
Subjects
-
Engineering and Technology
-
Computing
- Computer Science
- Information Systems
- Information Technology
-
Computing
Informal Categories
- Arts and Crafts
- Computers
Other
Components that are part of this resource:
- Additional Pictures To "Code" By Hand
- Online Run-Length Coding Activity
- Related Information About Compression
This resource is part of:
Access Rights:
- Free access
By:
Rights:
- Creative Commons: Share Alike (by-sa), Computer Science Unplugged, 2020
Funding Sources:
- Microsoft