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QQuanta KidsBy IIT & ISB Alumni
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Concept 3 of 6

Ranking by Height

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Today's big idea

Put them in size order

Tallest and shortest sit at the ends.

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How it works

👀 What's going on?

Line up three towers of blocks and your eye finds the tallest at once. Ranking is just putting things in order from most to least — here, from tallest to shortest.

💡 Here's the trick

Order tallest to shortest

Look at the towers above. The tallest reaches the highest and the shortest is the smallest. If you are told A is taller than B, you can even rank things you cannot see, by lining up the clues.

  1. 1.Read whether the question wants the tallest or the shortest.
  2. 2.Compare the heights (or line up the clues in order).
  3. 3.Pick the one at the correct end of the order.

✍️ Try it

Tom is taller than Sam. Sam is taller than Ravi. Who is the shortest? Put them in order: Tom (tallest), then Sam, then Ravi. So the shortest is Ravi.

⚠️ Watch out

Do not mix up tallest and shortest. They sit at opposite ends of the order, so read the question word before you choose.

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See it in action

⚡ Time to play!

Tap the towers in order from tallest to shortest.

Set 1 of 3
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Quick check

✅ VERIFICATION

Anu is taller than Bittu. Bittu is taller than Chi. Who is the TALLEST?

⚡ Finish the activity above first to answer.

Keep going!

Up next: Ranking by Weight

The pan that sinks holds more.

Concept 4 of 6