Growing up: ages of people and pets, and the "dog years" myth

Tests: 4 of 11 right · Exam: 1 of 4 right · Kind: ★ · Understood: 8 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 128 of the world 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 · ★ · right ✓

Jack: "My dog's 3, so he's 21 in dog years, simple maths." Vet: "That's a myth, actually." What's closer?

1. About 28 or 29, because dogs grow up fast at first — ← Mova's choice · ✓ the right answer · score 5
2. Exactly 21, so the vet has got it completely wrong — no support
3. About 70, because dogs age very fast from the start — score 5
4. About 3, because dogs age just the same as people do — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 5, tied with another option at 5 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 128, line 2: «"Times 7" for dog years is a myth. Dogs grow up very fast at first, so a 1-year-old dog is already like a teenager, and then they age more slowly; big dogs age…», reached through the remembered sentence the question matched. What matched: the same action «grow up» (+4); the same property (+3). Against it: a different doer (counts against) (-2). · the question and its options parsed, with trees and pragmatics

Test 2 · ★ · wrong ✗

Ruby: "My hamster's 2. Two isn't old!" What's true?

1. Hamsters never get old — ← Mova's choice · no support
2. Hamsters live about 20 years, so it's a baby — no support
3. A hamster is only old after 10 — no support
4. For a hamster, 2 is old; they live about 2 to 3 years — ✓ 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 3 · ★ · right ✓

Ben's grandad: "This tortoise was my dad's, and it'll see me out, I reckon." ("See me out" means outlive me.) Is that possible?

1. Yes, some tortoises live over 100 years — ← Mova's choice · ✓ the right answer · score 9
2. No, tortoises live about 10 years — score 9
3. Only if the tortoise never sleeps in winter — no support
4. No, pets always die before their owners — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 9, tied with another option at 9 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 128, line 11: «Some tortoises live over 100 years; Jonathan, on St Helena, is thought to have hatched around 1832, about 194 years before 2026.», reached through the remembered sentence the question matched. What matched: the same action «live» (+4); the same property (+3); the same doer «tortoises» (+2). · the question and its options parsed, with trees and pragmatics

Test 4 · ★ · wrong ✗

Lily: "Cat's 10. Is that, like, old?" Mum: "Kind of middle-aged." Why?

1. Cats are already old by the time they reach about 3 years — ← Mova's choice · no support
2. 10 is like 10 for a person — no support
3. By the cat guide, 10 is like about 56 for a person — ✓ the right answer · no support
4. 10 is like 70, so very old — 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

Test 5 · ★ · right ✓

Kai: "Mayfly lives one day? That's grim, bro." ("Grim" means sad.) What's he missing?

1. It lives a year or more as a nymph first — ← Mova's choice · ✓ the right answer · score 13
2. It comes back to life again the very next day — no support
3. It lives a thousand years deep underground — score 6
4. It lives one day and is never young at all — score 6

Why: It took the question to ask what it is done to. It chose option 1 with score 13, against 6 for the next best. Its support: lesson 128, line 12: «An adult mayfly lives about a day, after a year or more as a nymph underwater.», reached through the remembered sentence the question matched. What matched: the same circumstance (+7); the same property (+3); the same action «live» (+2); a different doer (counts against) (+1). · the question and its options parsed, with trees and pragmatics

Test 6 · ★ · wrong ✗

Mia: "He grew 6 cm and I only grew 4, it's well unfair!" What's the best answer?

1. She will never grow again after 9 — no support
2. Boys always grow exactly 2 cm more a year — ← Mova's choice · score 7
3. Children grow at different speeds, and spurts come at different times — ✓ the right answer · score 7
4. She must be ill, since everyone grows exactly the same amount every year — score 7

Why: It took the question to ask what it is done to. It chose option 2 with score 7, tied with another option at 7 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 128, line 13: «Children often grow about 5 to 6 cm a year before puberty, and growth spurts happen, especially in the teen years.», reached through the option's own match among the sentences about the question's things. What matched: the same action «grow» (+6); the same property (+1). The right option, 3, scored 7. · the question and its options parsed, with trees and pragmatics

Test 7 · ★ · right ✓

Gran, from Newcastle: "You'll be taller than me by 13, pet." ("Pet" means love.) Holly is 9 and 140 cm; Gran is 160 cm. At about 5 cm a year, is Gran right?

1. Yes: 20 cm at 5 cm a year takes 4 years, to age 13 — ← Mova's choice · ✓ the right answer · score 8
2. No: Holly will be 13 cm taller — no support
3. Yes, but only if Gran shrinks 20 cm — no support
4. No: it would take 20 years — score 6

Why: It took the question to ask which statement is true. It chose option 1 with score 8, against 6 for the next best. Its support: lesson 128, line 14: «Holly, 140 cm, growing about 5 cm a year, needs 20 ÷ 5 = 4 years to reach 160 cm.», reached through a sentence linked to the one the question matched. What matched: the same action «need» (+4); the same doer «holly» (+2); the same property (+2). · the question and its options parsed, with trees and pragmatics

Test 8 · ★ · wrong ✗

Ethan's mum: "Double digits now, our kid!" ("Our kid" means my lad, in the North.) How old is Ethan?

1. 12 — ← Mova's choice · no support
2. 2 — no support
3. 11 — no support
4. 10 — ✓ 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 ✗

Which would you expect: a tiny shrew's heart beating faster or slower than a horse's?

1. Slower: small animals' hearts beat slower — score 7
2. Faster: small animals' hearts usually beat faster — ✓ the right answer · score 7
3. The same: all hearts beat at one speed — no support
4. Slower: small hearts need less blood — ← Mova's choice · score 8

Why: It took the question to ask who or what does it. It chose option 4 with score 8, against 7 for the next best. Its support: lesson 93, line 4: «When you run, your muscles need much more oxygen, so you breathe faster and deeper and your heart beats faster to carry it. Regular exercise makes the heart st…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+4); the same doer «heart» (+3); the same thing acted on «more blood» (+1). The right option, 2, scored 7. · the question and its options parsed, with trees and pragmatics

Test 10 · ★ · wrong ✗

Max: "When I'm 18, I can do whatever I want, fr fr." ("Fr fr" means for real.) Dad: "You'll still have to be on time for work." Who's right?

1. Dad: at 18 you can't do anything new — ← Mova's choice · no support
2. Dad: some rules change with age, but being on time stays — ✓ the right answer · no support
3. Max: grown-ups never need to be on time — no support
4. Max: at 18 there are no rules at all — 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 · ★ · wrong ✗

A cartoon dog says, "I'm 7 in dog years because I'm 1!" Fix the joke.

1. A 1-year-old dog is still a tiny newborn puppy, eyes shut — no support
2. A 1-year-old dog is more like a 70-year-old grandparent — no support
3. A 1-year-old dog is more like a 15-year-old person — ✓ the right answer · no support
4. A 1-year-old dog is more like a 1-year-old person, a toddler — ← Mova's choice · score 7

Why: It took the question to ask which statement is true. It chose option 4 with score 7, the only option with support. Its support: lesson 128, line 8: «By that guide a 3-year-old dog is like a person of about 28 or 29, and big dogs age faster than small ones.», reached through the remembered sentence the question matched. What matched: the same circumstance (+4); the same doer «old dog» (+2); the same light verb (be, have, do, get, go) (+1). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Which of the following statements most accurately characterises the rule whereby the age of a dog is multiplied by seven?

1. It applies to cats but not to dogs — no support
2. It is an oversimplification, dogs maturing rapidly at first and more slowly thereafter — ✓ the right answer · no support
3. It was established by law in the year 1907 — ← Mova's choice · score 2
4. It is exact for dogs of every size and breed — no support

Why: It took the question to ask who or what does it. It chose option 3 with score 2, the only option with support. Its support: lesson 114, line 12: «To find a birth year, take the age from the year of that birthday: 2026 − 80 = 1946.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «age» (+4). 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

Exam question 2 · formal language · wrong ✗

Given that a cat's first year corresponds to fifteen human years, its second to a total of twenty-four, and each subsequent year to four, ascertain the human equivalent of a cat aged ten years.

1. Forty — ← Mova's choice · no support
2. Sixty-four — no support
3. Fifty-six — ✓ the right answer · no support
4. Seventy — 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 ✓

A child of 140 centimetres grows at a rate of five centimetres per annum. Determine the number of years required to attain 160 centimetres.

1. Four — ← Mova's choice · ✓ the right answer · no support
2. Twenty — no support
3. Five — no support
4. Three — 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 heart rates of animals.

1. Heart rate bears no relation to the size of the animal — ← Mova's choice · no support
2. Smaller animals generally possess faster heart rates than larger animals — ✓ the right answer · no support
3. All mammals possess identical heart rates — no support
4. Larger animals generally possess faster heart rates than smaller animals — 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

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