Screens, eyes and sleep
Tests: 5 of 11 right · Exam: 1 of 4 right · Kind: ★★ · Understood: 5 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 35 of the medicine 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 ✗
Gran: "sit back from the telly or you'll go blind!" What's true?
- 1. It makes the eyes stronger, like exercise does for muscles — ← Mova's choice · no support
- 2. It only matters for old colour TV sets — no support
- 3. It won't damage eyes, but if he always sits close, check his sight — ✓ the right answer · no support
- 4. She's right, it causes blindness — 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 2 · ★★ · right ✓
Mate games till midnight, says he's "fine". What's the catch?
- 1. Gaming rests the brain as well as sleep does — no support
- 2. He's fine, kids only need about 6 hours a night — no support
- 3. Midnight is a normal bedtime at his age — no support
- 4. Feeling fine doesn't mean enough sleep; mood and memory suffer — ← Mova's choice · ✓ the right answer · score 3
Why: It took the question to ask what it is done to. It chose option 4 with score 3, the only option with support. Its support: lesson 23, line 14: «Fizzy drinks have lots of sugar and acid, and energy drinks have caffeine, which can upset sleep and speed up the heart, so health advice says children shouldn…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+3); the same thing acted on «sleep» (+2). Against it: a different action (counts against) (-1); a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 3 · ★★ · wrong ✗
Two classes: one plays outdoors two hours a day, one stays in. Which is likely to have less short sight years later?
- 1. The indoor class — ← Mova's choice · no support
- 2. The outdoor class — ✓ the right answer · no support
- 3. Neither will need glasses — no support
- 4. Both the same, certainly — 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 4 · ★★ · right ✓
"I'll just put night mode on and scroll in bed till 11" — will that fix sleep?
- 1. Night mode makes you sleep at once — no support
- 2. Not on its own, the content and late hour still steal sleep — ← Mova's choice · ✓ the right answer · score 6
- 3. Yes, it adds extra hours of deep sleep — no support
- 4. Yes, perfectly — no support
Why: It took the question to ask which statement is true. It chose option 2 with score 6, the only option with support. Its support: lesson 35, line 4: «A phone in bed steals that sleep: the exciting game, the last video, the bright light, and before you know it it's midnight and tomorrow's maths feels like fog.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «sleep» (+4); the same action «steal» (+3). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 5 · ★★ · wrong ✗
What would happen if a 9-year-old slept only 6 hours every night for a month?
- 1. She'd get cleverer from all the extra hours awake reading — ← Mova's choice · no support
- 2. Mood, concentration and memory would likely suffer — ✓ the right answer · no support
- 3. Nothing, 6 hours is plenty for a child — no support
- 4. She'd grow faster, with more time awake — 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 ✓
Your eyes sting after 2 hours on a tablet. Quick fix?
- 1. Look far away and blink for a bit — ← Mova's choice · ✓ the right answer · score 7
- 2. Turn the brightness up to full — no support
- 3. Get closer to the screen so they focus — score 5
- 4. Rub them hard with your knuckles — score 7
Why: It took the question to ask which statement is true. It chose option 1 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 35, line 1: «Screens are not poison for your eyes, but when you stare at a game you blink much less, so your eyes dry out and feel tired; looking far away and blinking for…», reached through the same lesson line as the sentence the question matched. What matched: the same action «look» (+4); the same property (+3). · the question and its options parsed, with trees and pragmatics
Test 7 · ★★ · wrong ✗
Little sis dreamt Mum disappeared and she's sobbing. What to tell her?
- 1. It might come true, so watch Mum carefully — ← Mova's choice · no support
- 2. Don't tell anyone about it, ever — no support
- 3. It was a nightmare, dreams don't predict the future — ✓ the right answer · no support
- 4. Dreams are messages from the future — 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 8 · ★★ · wrong ✗
Brother's sleepwalking towards the stairs. What do you do?
- 1. Push him back towards his room — ← Mova's choice · no support
- 2. Scream to wake him — no support
- 3. Gently guide him back to bed and tell a parent — ✓ the right answer · no support
- 4. Ignore it, sleepwalkers always stop safely at the stairs — 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 9 · ★★ · right ✓
Where's best to charge your phone at night?
- 1. In the bathroom — no support
- 2. Outside your bedroom — ← Mova's choice · ✓ the right answer · score 6
- 3. Under your pillow, so you hear it — no support
- 4. On the bed next to your face — no support
Why: It took the question to ask where. It chose option 2 with score 6, the only option with support. Its support: lesson 35, line 11: «Screens before bed, with bright light and exciting content, can delay sleep, so doctors suggest no screens for about an hour before bed and devices charged out…», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+4); the same place «bedroom» (+2). · the question and its options parsed, with trees and pragmatics
Test 10 · ★★ · wrong ✗
In a movie, a kid who reads by torchlight under the covers goes blind. Real life?
- 1. Dim light may tire eyes but doesn't ruin them — ✓ the right answer · no support
- 2. Torches are banned in bedrooms — no support
- 3. It's good for eyes, it trains them in the dark — ← Mova's choice · score 6
- 4. It does cause blindness after a while — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 6, the only option with support. Its support: lesson 27, line 10: «A lazy eye, or amblyopia, means one eye has not developed sharp vision, and covering the good eye with a patch makes the brain use the weaker one; treatment wo…», reached through the same lesson line as the sentence the question matched. What matched: the same property (+3); the same circumstance (+3). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 11 · ★★ · right ✓
Sleep in the weekend till 1pm to "catch up" — does it work?
- 1. Not fully, and it can mess up your body clock — ← Mova's choice · ✓ the right answer · no support
- 2. Yes, it gives extra energy all week — no support
- 3. Yes, perfectly — no support
- 4. It replaces the weekday sleep exactly, hour for hour — 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 ✗
Pursuant to current recommendations, determine the nightly duration of sleep required by children aged between six and twelve years.
- 1. Approximately fourteen to sixteen hours — ← Mova's choice · no support
- 2. Approximately five to six hours — no support
- 3. Approximately three hours — no support
- 4. Approximately nine to twelve hours — ✓ 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 ✗
Select the response consistent with the established facts concerning prolonged viewing of a television at close range.
- 1. It strengthens the eyesight — ← Mova's choice · no support
- 2. It induces blindness in later life — no support
- 3. It may induce fatigue but does not damage the eyes — ✓ the right answer · no support
- 4. It induces short sight permanently in the majority of children — 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 ✗
Identify the activity which research suggests diminishes the risk of short sight developing in childhood.
- 1. Viewing screens at close range — ← Mova's choice · no support
- 2. Reading in dim light — no support
- 3. Wearing tinted spectacles indoors — no support
- 4. Time spent outdoors in daylight — ✓ 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 4 · formal language · right ✓
Whereas a child is observed sleepwalking, ascertain the conduct customarily advised.
- 1. Gentle guidance of the child back to bed — ← Mova's choice · ✓ the right answer · no support
- 2. Application of cold water — no support
- 3. Confinement in a locked room — no support
- 4. Abrupt awakening by shouting — 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/medicine/35-screens-eyes-and-sleep/