Science · Stage 3
Design, Build, Test, Improve
Spot a need, design a fix, build it, test it — then improve one thing and go round again!
✦ Science📘 Stage 3 · S3⏱ ~10 min🧒 Ages 7–8★ Free to start
I can follow the design cycle.
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Kavi's Bridge for the Toy Cars
The toy cars 🚗 are stuck — there is a gap between the two tables and they cannot cross! "That's a need 🔍," hoots Kavi. "So we design a bridge ✏️, build it 🔨, and test if a car can cross 🧪. If it bends, we improve one thing 🔧 and go round again. That's the design cycle!"
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What your child will learn
1The five steps of the design cycleReal designers follow five steps, over and over. Tap each step to learn it.
2Round and round the design cycleThe steps make a loop — after you improve, you test again. Tap each step in order!
3Follow the cycle with KaviUse the five steps to help Kavi build the bridge. Predict, then tap to check! Tap Next test for more.
4First try vs improvedLook at Kavi's bridge before and after ONE change. Tap each card.
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A peek inside
What is the very first step of the design cycle?
Before anything else, a designer identifies the need — the problem that must be solved.
Try this at home: Put the design cycle in order: Test · Identify a need · Improve · Design · Build
Ready to play and learn?
Start the free interactive lesson, or print the handout for screen-free play.
Part of Science · Stage 3 · S3 on KAVI Academy — a secular, whole-child learning platform for ages 5–12.