Start with 5 × 5
Draw a small smile, letter, or symbol using only filled and blank squares.
Home / Ages 8–10
Ages 8–10Elementary
Age-based learning path
Turn small clues into information.
Elementary learners can begin exploring how information gets represented. Try binary cards, pixel grids, and step-by-step algorithms to connect computer science ideas to things they already see and use.
ExploreTryExplain
A classroom-sized investigation
How can a row of bits show a picture?
Use a small grid where each square is either filled or empty. Agree on which bit means each choice, then send a pattern to a partner to recreate.
Write a row as bits
Choose 1 for filled and 0 for blank. Write each row as a short string.
Send the pattern
Give your bit rows to another learner without showing the original drawing.
Spot the convention
Discuss how a shared rule helps someone else decode the same information.
Ideas to connect
From a code to a set of instructions.
Once a learner can encode a simple picture, connect the idea to an algorithm: a precise sequence of steps that produces an outcome. A recipe, a map route, and a sorting rule can each be described as steps.
- Make instructions clear enough for a classmate to follow
- Change one step and see what result changes
- Compare two solutions to the same problem