Inchy
Measuring by laying the same unit end to end, no gaps and no overlaps
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Inchy is a small green inchworm who measures the whole world with one thing: Inchy. To find out how long a twig is, Inchy stretches out, tucks up, stretches out, tucks up — step, step, step — all the way along. "Four Inchys long!" Each step is exactly one Inchy, end to end, with no jumping ahead and no doubling back. Same-size steps, every time. That's the trick.
Two ants, Bex and Nim, are having a squabble. "MY stick is longer!" says Bex. "No, MINE is!" says Nim. They hold their sticks up in the air, far apart, and glare. But you can't tell longer from shorter when the sticks are waving around in the air. The squabble just gets louder, and both ants feel hot and cross.
Inchy loops over. "Let's find out for real," says Inchy. "But we have to be fair. We measure both sticks with the same steps — my steps. Start right at one end. No gaps between steps, no stepping over the same spot twice." Inchy lays down flat next to Bex's stick. "Watch. Step... step... step. Count with me."
Bex's stick: step, step, step, step, step — "Five Inchys!" Nim's stick: step, step, step, step, step, step — "Six Inchys!" Same steps, same way, both times. The ants go quiet. "Six is more than five," says Nim slowly. "Nim's really is a little longer," says Bex — and to Bex's own surprise, it doesn't sting. It's just... true. Now they both know, the fair way.
Bex and Nim lay their sticks down side by side and look. The measuring made the argument melt away — there was nothing left to shout about, only something they'd figured out together. A cool, settled calm spreads through both ants, the calm of knowing for sure. "Measure me next!" says Bex, lying down straight. And Inchy, happy as can be, starts to step: one Inchy, two Inchy, all the way along.
Hear it as an audio drama
A short play starring Inchy, from MeasurePals. Different voices, same idea. Listen any time after you read.
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Read the drama script
- Narrator: From Spark and Anvil and Measurepals — this is Inchy, in chapter 1 of the Measurepals cast.
- Narrator: This drama uses an AI-generated voice. Voiced via Gemini 2.5.
- Narrator: Inchy is a small green inchworm who measures the whole world with one thing — Inchy.
- Inchy: To find out how long a twig is, I stretch out, tuck up, stretch out, tuck up — step, step, step — all the way along.
- Narrator: Watch Inchy go, right to the end of the twig.
- Inchy: One... two... three... four. Four Inchys long! Each step is exactly one Inchy, end to end. No jumping ahead, no doubling back.
- Narrator: A young beetle tried measuring a leaf, but she made big steps, then little steps, all different sizes.
- Inchy: That's the one thing to watch — same-size steps every time. If your steps change size, your answer won't be fair. Lay the unit down end to end, no gaps and no overlaps.
- Narrator: So the beetle made every step exactly the same, end to end.
- Beetle: Six! And I'm sure it's fair.
- Inchy: That's the trick — same-size units, end to end. Then you always know for sure. That's what makes Inchy, Inchy.
- Narrator: You've been listening to a Spark and Anvil chapter, written by the Spark and Anvil writing team for ages 9 to 14.
- Narrator: Apps stay free forever.
- Narrator: Curriculum aligned to Common Core and Next Generation Science Standards.
- Narrator: Released under Creative Commons BY-NC-SA 4.0 for educational reuse. Visit Spark and Anvil for the full transcript.
Reading together with a grown-up? A card for the grown-up
For the grown-up: ask one question, then wait. When they answer, add one word to what they said. Tap the button when they have said something — that is one turn each, a circle. Nothing is recorded or kept.
Let them finish it
Say “Inchy: lay the same unit end to end — no gaps, no …” and stop. Let them finish it.
Now wait. Count slowly to five in your head. Their answer is worth the quiet.
Circles together: 0
The MeasurePals ensemble
Inchy is one of the friends in MeasurePals. Each friend shows you one idea by how they act; meet them all and you have the whole subject.
