Money's history: shells, coins, paper, cards, phones

Tests: 6 of 11 right · Exam: 1 of 4 right · Kind: plain · Understood: 6 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 5 of the money course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: the lesson in the corpora.

Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: the lesson's questions in the corpora.

Test 1 · wrong ✗

Kai goes "I'm minted, got a bucket of shells!" ("Minted" means rich.) What's the truth?

1. He's right, shells are still money everywhere in the world — no support
2. Shells were never used as money anywhere — ← Mova's choice · score 0
3. He's right if the shells are big enough — no support
4. Shells were money long ago, but nobody takes them now — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 2 with score 0, the only option with support. Its support: lesson 4, line 5: «Barter means swapping goods or help without using money.», reached through the same lesson line as the sentence the question matched. What matched: the same action «use» (+2); the same circumstance (+2). Against it: a different thing acted on (counts against) (-1); one says «not», the other does not (counts against) (-3). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 2 · right ✓

Isla asks "where'd the money go? I didn't see any!" after Mum taps her phone. What's the answer?

1. It left Mum's bank account, as numbers changing — ← Mova's choice · ✓ the right answer · score 4
2. It wasn't real money, so nothing was paid — score 4
3. The coffee shop gave it back — no support
4. It's hidden inside the phone until the battery runs out — no support

Why: It took the question to ask where. It chose option 1 with score 4, tied with another option at 4 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 5, line 1: «Money has changed its shape many times, but its job has stayed the same: to buy, to save and to measure what things are worth.», reached through the option's own match among the sentences about the question's things. What matched: the same action «change» (+2); the same doer «money» (+2). · the question and its options parsed, with trees and pragmatics

Test 3 · wrong ✗

Zac's like "no cash in the future, bro, it's dead." His aunt says her old neighbour still needs it. Who's right?

1. Neither, cash was banned last year — ← Mova's choice · score 4
2. Both have a point: cash is falling, but some people still need it — ✓ the right answer · no support
3. Only Zac, cash is already gone everywhere — no support
4. Only the aunt, cash is growing fast — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 4, the only option with support. Its support: lesson 5, line 3: «About 2,600 years ago the first coins were made in Lydia, in what is now Turkey, and over 1,000 years ago China began using paper money, because a light note w…», reached through the remembered sentence the question matched. What matched: the same thing acted on «first coins» (+4); the same property (+2). Against it: a different action (counts against) (-2). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 4 · right ✓

A cartoon shows cavemen paying with credit cards. What's wrong?

1. Cards came thousands of years later; early people used things like shells — ← Mova's choice · ✓ the right answer · no support
2. Cards were invented before coins — no support
3. Cavemen used phones, not cards — no support
4. Nothing, cavemen had the first bank cards — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 5 · right ✓

Teacher: "The first coins were made 2,600 years ago." Liam: "Older than my nan then." If a lifetime is about 100 years, how many lifetimes back is that?

1. About 26 — ← Mova's choice · ✓ the right answer · no support
2. About 2 — no support
3. About 260 — no support
4. About 6 — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 6 · right ✓

Rosa's mate says "Roman soldiers 100% got paid in salt, that's a fact." What's more careful to say?

1. No, Romans never used salt at all — no support
2. Yes, every Roman soldier got only salt — no support
3. Romans were paid in phones — no support
4. The word salary comes from salt, but historians argue about the payment story — ← Mova's choice · ✓ the right answer · score 4

Why: It took the question to ask which statement is true. It chose option 4 with score 4, the only option with support. Its support: lesson 5, line 6: «Salt was very valuable because it stopped food going bad; the word "salary" comes from the Latin word for salt, though historians argue about whether Roman sol…», reached through a sentence linked to the one the question matched. What matched: the same action «argue» (+2); the same doer «historians» (+2). · the question and its options parsed, with trees and pragmatics

Test 7 · wrong ✗

Ethan says the next step is "paying with your face, innit." Is that made up?

1. Yes, it's only in films — no support
2. No, everyone already pays with their face — ← Mova's choice · score 6
3. No, some shops already test face and fingerprint payment — ✓ the right answer · score 4
4. Yes, because a face can never be linked to a bank account at all — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 6, against 4 for the next best. Its support: lesson 5, line 15: «Some shops already test paying with your face or fingerprint.», reached through the remembered sentence the question matched. What matched: the same action «pay» (+4); the same circumstance (+4). Against it: a different doer (counts against) (-2). The right option, 3, scored 4. · the question and its options parsed, with trees and pragmatics

Test 8 · wrong ✗

Theo's nan, a West Country lass, says "we 'ad paper pound notes, my lover, gurt big ones." ("My lover" is a friendly greeting; "gurt" means big.) What replaced them?

1. The 50p coin, in Roman times — ← Mova's choice · no support
2. The £5 note, last year — no support
3. Gold bars, in the 1900s — no support
4. The £1 coin, in the 1980s — ✓ the right answer · no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 9 · wrong ✗

What would happen if every coin had a different weight and no number on it?

1. Shopping would be much faster, because nobody would need to count — no support
2. Nothing would change, because coins are never checked by anyone — no support
3. Prices would become free, since coins would have no fixed value — ← Mova's choice · score 5
4. People would have to weigh and argue over each coin — ✓ the right answer · no support

Why: It took the question to ask what happens next. It chose option 3 with score 5, the only option with support. Its support: lesson 3, line 13: «Leftover foreign coins still have value abroad; many airports have charity boxes for them, and banks often will not swap coins back.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «leftover foreign coins» (+2); the same thing acted on «value» (+2); the same light verb (be, have, do, get, go) (+1). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 10 · right ✓

Grandad's chequebook: Josh says "what the heck is that, a menu?" What's it for?

1. Writing notes that tell the bank to pay people — ← Mova's choice · ✓ the right answer · no support
2. Drawing pictures of money to teach children to count — no support
3. Keeping old receipts tidy in a box in case of refunds — no support
4. Writing down a shopping list before going to the market — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 11 · right ✓

Pippa: "how'd they spend a stone bigger than a car?" Which modern money is a bit like that?

1. Bank money, where only the record of who owns it changes — ← Mova's choice · ✓ the right answer · no support
2. Coins, which you hand over in a shop — no support
3. Shells, which you carry in a bucket — no support
4. Sweets, which you swap at break — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Identify the location wherein, according to established historical evidence, the earliest coins were produced.

1. The kingdom of England under the Tudors — ← Mova's choice · no support
2. Lydia, a territory now forming part of Turkey — ✓ the right answer · no support
3. The Roman province of Britannia, under the emperors — no support
4. The island of Yap in the Pacific Ocean — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · wrong ✗

Which of the following statements most accurately characterises a cheque?

1. A card permitting payment by contact with a terminal — ← Mova's choice · no support
2. A metallic token of fixed value issued by a mint — no support
3. A receipt issued by a merchant following a sale — no support
4. A written instruction to a bank to effect payment to a named party — ✓ the right answer · no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

It is given that an account holds sixty pounds and that a payment of three pounds is subsequently effected by telephone. Ascertain the balance remaining.

1. Fifty-seven pounds — ← Mova's choice · ✓ the right answer · no support
2. Sixty-three pounds — no support
3. Fifty-three pounds — no support
4. Sixty pounds — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · wrong ✗

Select the response consistent with the established facts concerning the origin of paper money.

1. It was first employed in Britain in the present century — ← Mova's choice · no support
2. It was first employed in China more than one thousand years ago — ✓ the right answer · no support
3. It was first employed by the Romans in place of salt — no support
4. It was first employed on the island of Yap — no support

Why: Nothing it remembers matched the question, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/money/5-money-s-history-shells-coins-paper-cards-phones/