The Wandering Forge · Sprout · ages 6-8
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Read by an AI-generated voice. The words on this page are the transcript.
The Bell Too Heavy to Weigh
The hammer rang once. A spark jumped off the anvil and did not go out. It waited. They followed.
The spark landed in the coals of a little cart. The cart's bell rang once, and the wheels began to turn.
The cart stopped in Brimwater. A new bell sat by the river. The ferry post said: NO MORE THAN 400.
"It looks small! I can name it," said Inkling. "Say three hundred. Load it!"
"Looking is not the same as knowing," said Glug.
"What does the water tell you?" said Fiddle.
Beto stepped in the boat. It dipped. Inkling stepped in. It dipped more.
"Same on both sides, and it's level," said Evenly. "The same mark means the same."
The bell went in the boat. Beto scratched the waterline. An old line was there too, with a tiny hammer.
The bell came out. Stones went in. "One more! That's one more," said Bop.
Too many! The line went under.
"Not yet," said Inkling. They took stones out. The water touched the line.
"Put it on the pan and watch," said Teeter. Seventeen baskets of twenty. One of twelve.
"Ten ones make one ten," said Loaf. Three hundred and fifty-two. Safe!
The bell crossed. Fiddle let them make a scriber.
The cart's bell rang twice, and the road ran home.
The spark dimmed to a warm dot and settled back on the anvil. The Green was just the Green again.
Back on the Green
Lan's shell went in a floating tub. Inkling marked the line. Twelve marbles made the same line.
Bà Tư's basket had a tiny hammer on it. "I rode the cart once," she said.
Inkling mended Lan's toy boat. She scratched a tiny hammer by it. Then she rang the hammer for Lan.
One day, someone will ring it for you.
Who you met
-
Inkling a child of the Green Names what she notices -
Glug Looking is not the same as knowing — check it from PourTots -
Fiddle You learn what a thing does by trying it — the playing is the learning from AweForge -
Evenly The same on both sides means level, and level means equal from TeeterTots -
Teeter The heavier side goes down — a balance tells you which is more from TeeterTots -
Beto a child of the Green Takes things apart -
Bop Count one at a time, every single one from CarryPals -
Loaf Ten ones squish into one ten, so a big count is tens and ones from CarryPals
Every recurring character has a short tune, so you can tell who is on stage before a word is said. The tunes play only when you tap, and the Reading Access sound switch turns them off.
The Honest Page
Which parts of this story are true, stretched or made up?
True
- A floating boat sinks lower when it carries more weight. If two loads make the same boat sit at the same waterline, they weigh the same. Source
- Seventeen baskets of twenty kilograms make 340 kilograms. With one more basket of twelve, that is 352, which is 48 under the limit of 400.
- Lương Thế Vinh (1441–1496) was a real Vietnamese mathematician. He wrote a book of mathematics that was used to teach and test students for hundreds of years. Source
- In Vietnam, schoolchildren read a lesson called Cân voi, Weighing the Elephant, about this trick; in today's Kết nối tri thức textbooks it is in third grade. Source
Stretched
- Lương Thế Vinh is said to have weighed an elephant this way, with a boat, a mark and a pile of stones. What we simplified: This is a giai thoại, a story told about a real person. Nobody wrote it down when it happened, and almost the same story is told in China about a boy called Cao Chong. The man is in ink; the story is in pencil.
- In the book the water stops exactly on Beto's line. What we simplified: A real boat bobs, so people read the line when the water is still and allow a little either way. A boat also has to be safe for the load; the ferryman checks that too.
Made up
- Brimwater, its talking frog, bunny, bear cub, bean and loaf, and the tiny hammer on the hull are made up. Never load or ride a boat without a grown-up.