Time zones and the calendar

Tests: 3 of 13 right · Exam: 0 of 4 right · Kind: ★★ · Understood: 6 of 17 · Run: 2026-10-18, commit f3c23ea72

Lesson 9 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 · ★★ · wrong ✗

It is 12 noon in London. Which is most likely true?

1. It is evening in New York and morning in Beijing — ← Mova's choice · score 10
2. It is midnight in Paris — no support
3. It is noon everywhere on the Earth — score 10
4. It is evening in Beijing and early morning in New York — ✓ the right answer · score 10

Why: It took the question to ask which statement is true. It chose option 1 with score 10, tied with another option at 10 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 9, line 1: «Because the Earth turns, noon comes to different places at different times: when it is noon in London, it is already evening in China and still early morning i…», reached through the remembered sentence the question matched. What matched: the same doer «noon» (+4); the same thing acted on «noon» (+4); the same light verb (be, have, do, get, go) (+2). The right option, 4, scored 10. · the question and its options parsed, with trees and pragmatics

Test 2 · ★★ · wrong ✗

A plane flies west across three time zones. How should the passengers set their watches?

1. Forward by one day — ← Mova's choice · no support
2. Back by about three hours — ✓ the right answer · no support
3. They need not change them — no support
4. Forward by about three hours — 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 · ★★ · wrong ✗

Olga was born on 29 February. How often is her real birthday date on the calendar?

1. Never again after the day she was born — ← Mova's choice · no support
2. Every single year, like everyone else — no support
3. Only once every ten years or so — no support
4. Usually once every four years — ✓ the right answer · 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 4 · ★★ · right ✓

If the year were exactly 365 days long, what would we do with leap years?

1. We would not need them — ← Mova's choice · ✓ the right answer · no support
2. We would need one every year — no support
3. We would need one every hundred years — no support
4. We would need two each year — 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 · ★★ · wrong ✗

Which is true?

1. The month comes from the Sun and the year from the Moon — ← Mova's choice · no support
2. The day and the year both come from the Moon — no support
3. The day comes from the Moon and the year from the Earth's turn on its own axis — no support
4. The day comes from the Earth's turn and the year from its trip around the Sun — ✓ the right answer · 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 6 · ★★ · right ✓

A town in the far east of a country sees sunrise before a town in the west. Why?

1. The eastern town is closer to the Sun — no support
2. The Earth turns towards the east, so the east meets the Sun first — ← Mova's choice · ✓ the right answer · score 2
3. The western town has more clouds — no support
4. The Sun is bigger in the east — no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 2, the only option with support. Its support: lesson 5, line 11: «When you look at a far star, you see light that left it long ago, so you see the star as it was when that light set off.», reached through the cause of the sentence the question matched. What matched: the same action «see» (+4). Against it: a different doer (counts against) (-2). · the question and its options parsed, with trees and pragmatics

Test 7 · ★★ · wrong ✗

Will the year 2100 be a leap year?

1. No, because it ends in 00 and does not divide by 400 — ✓ the right answer · score 4
2. Yes, because it divides by 4 — no support
3. Yes, because every year ending in 00 is — ← Mova's choice · score 6
4. No, because leap years will end in 2050 — score 4

Why: It took the question to ask which statement is true. It chose option 3 with score 6, against 4 for the next best. Its support: lesson 9, line 15: «Years ending in 00 are leap years only if they divide by 400, so 2000 was a leap year but 1900 was not.», reached through the same lesson line as the sentence the question matched. What matched: the same action «end» (+2); the same doer «years» (+2); the same place «00» (+2). The right option, 1, scored 4. · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · wrong ✗

A calendar with no leap years has been used for 400 years. What has happened?

1. It is still exactly right — no support
2. It has slipped a whole year behind — ← Mova's choice · score 3
3. It has slipped about one day behind — score 3
4. It has slipped about a hundred days behind the seasons — ✓ the right answer · score 3

Why: It took the question to ask which statement is true. It chose option 2 with score 3, tied with another option at 3 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 9, line 5: «Without leap years the calendar would slip by about one day every four years, and after about 750 years the summer months would fall in the middle of winter.», reached through the option's own match among the sentences about the question's things. What matched: the same action «slip» (+2); the same property (+1). The right option, 4, scored 3. · the question and its options parsed, with trees and pragmatics

Test 9 · ★★ · wrong ✗

Why can a phone call from Ukraine to Japan wake someone up?

1. Japan has longer days than Ukraine — ← Mova's choice · no support
2. It may already be night there because Japan is far to the east — ✓ the right answer · no support
3. The Sun never sets in Japan — no support
4. Japan's clocks always run slower, so they are hours behind Ukraine — 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 10 · ★★ · wrong ✗

its 9 in the morning in london, is it 9 in new york too

1. No, New York is a few hours later — ← Mova's choice · no support
2. No, New York is a few hours earlier — ✓ the right answer · no support
3. No, New York is a whole day ahead — no support
4. Yes, the clock is the same everywhere — 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 11 · ★★ · right ✓

how come feb's got 29 days some years

1. To keep the calendar in step with the extra 6 hours each year — ← Mova's choice · ✓ the right answer · no support
2. Because the Moon goes faster those years — no support
3. Just to make February longer for fun — no support
4. Because the Earth spins slower in February — 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 12 · ★★ · wrong ✗

Mia says 1900 was a leap year cos it divides by 4. true?

1. No, years ending in 00 need to divide by 400 — ✓ the right answer · score 6
2. Yes, and so was every year ending in 00 — score 6
3. No, leap years never end in 0 — score 1
4. Yes, every year that divides by 4 is a leap year — ← Mova's choice · score 10

Why: It took the question to ask which statement is true. It chose option 4 with score 10, against 6 for the next best. Its support: lesson 9, line 14: «Most years divisible by 4 are leap years, such as 2024 and 2028.», reached through the remembered sentence the question matched. What matched: the same doer «most years» (+4); the same thing acted on «leap years» (+4); the same light verb (be, have, do, get, go) (+2). The right option, 1, scored 6. · the question and its options parsed, with trees and pragmatics

Test 13 · ★★ · wrong ✗

Leo says the Sun comes up at the same time all over the world. right?

1. No, it rises earlier in places farther west — ← Mova's choice · score 14
2. Yes, but only on the equator — no support
3. Yes, sunrise is at the same moment everywhere — no support
4. No, it rises earlier in places farther east — ✓ the right answer · score 14

Why: It took the question to ask which statement is true. It chose option 1 with score 14, tied with another option at 14 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 9, line 10: «The Sun rises earlier in places farther east.», reached through the remembered sentence the question matched. What matched: the same action «rise» (+4); the same doer «sun» (+4); the same place «places» (+4); the same property (+2). The right option, 4, scored 14. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Identify the principal reason for the division of the world into time zones.

1. The calendar differs between the continents — ← Mova's choice · no support
2. The Moon is visible at different hours in different places — no support
3. The Sun shines with differing intensity upon different nations — no support
4. The rotation of the Earth brings noon to different places at different times — ✓ 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 2 · formal language · wrong ✗

State the number of days comprised in a leap year.

1. Three hundred and sixty — ← Mova's choice · no support
2. Three hundred and sixty-four — no support
3. Three hundred and sixty-five — no support
4. Three hundred and sixty-six — ✓ 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 · wrong ✗

It is given that years ending in two zeros are leap years only if divisible by four hundred. Ascertain which of the following was a leap year.

1. The year 2100 — ← Mova's choice · no support
2. The year 2000 — ✓ the right answer · no support
3. The year 1900 — no support
4. The year 1800 — 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 ✗

Whereas a traveller proceeds eastward into the adjacent time zone, determine the customary adjustment of the clock.

1. It is advanced by twelve hours — ← Mova's choice · no support
2. It is put back by one hour — no support
3. It is advanced by one hour — ✓ the right answer · no support
4. It remains unaltered — 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

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/world/9-time-zones-and-the-calendar/