Computing · Stage 3

Break It Down

Thinking It Through · decomposition — split a big job into smaller parts so it's easy to do

✦ Computing📘 Stage 3 · S3⏱ ~11 min🧒 Ages 7–8★ Free to start

I can split a big job into smaller parts.

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Kavi's Big Messy Room

Kavi looked at the messy bedroom and sighed. "Tidy the whole room? That's too big!" Then Kavi had a clever idea. "What if I break it down into small parts? First: put the books on the shelf. Next: toss the toys in the box. Last: make the bed." One small part at a time, the big job got done. "Splitting a big job into smaller parts is called decomposition," smiled Kavi. "A big job is just lots of little jobs!"

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What your child will learn

1A big job is easier split into partsA big job can feel too hard to start. But if you break it down into small parts, each part is easy — and doing them all finishes the job. Tap each card to compare.

2Break the big job into small stepsHere is the big job 'make a jam sandwich', broken down into small parts. Press Run — Kavi does one small part at a time, top to bottom, until the big job is done.

3Match each small part to its big jobEvery small part belongs to a bigger job. Decide which big job each little part is a piece of, then tap the right box.

4The job feels too big — what do you do?Kavi has a big job: plant a little garden. It feels like a lot all at once. Predict the smartest first move, then reveal.

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A peek inside

Kavi's big job is 'tidy the bedroom'. Which of these is one small part of that big job: 'put the books on the shelf', or 'tidy the whole house'?

a small part is one little piece of the one big job, not an even bigger job

Try this at home: Splitting a big job into smaller parts is called ____.

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Start the free interactive lesson, or print the handout for screen-free play.

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Part of Computing · Stage 3 · S3 on KAVI Academy — a secular, whole-child learning platform for ages 5–12.