What does a child have to do to identify a main idea in the 11+?

Select the main idea of a passage or section. It is one of 41 named English skills in the 11+, in the reading strand, and this page carries 1 interactive exercise that practises it.

What is the trap in an 11+ identify a main idea question?

"Sixty-one pupils at Marsh Lane now cycle to school" is true, and it is the most striking number in the passage. A true detail is still not the main idea: it is one fact the main idea rests on. The wrong answers on this skill are built out of that, not out of random numbers, so it is worth naming out loud before your child meets it under time pressure.

What does identify a main idea lead on to?

Once it is secure, the skill map opens identify a theme. Theme requires integration beyond a local main idea.

What is not part of identify a main idea in the 11+?

The skill map draws the line here: Excludes theme across a whole work. A question past that line is testing a different named English skill, which is worth knowing before you spend a week practising the wrong one.

Which other 11+ skills should we practise alongside identify a main idea?

The reading strand holds 11 skills that are tested together, and the pages next to identify a main idea are identify textual mood, identify writer purpose and identify a theme. Each has its own exercise and its own link, and none of them needs an account.

How can my child practise identify a main idea for free?

Use Unreliable Witness, embedded on this page. It is the exercise the skill map attaches to identify a main idea, it runs in the browser with no account to make, these exercises are not scored and do not save learner records. The separate quiz sends answers for marking and shows a score, without saving an assessment record. It also has its own link, so you can send it to a child without sending them anywhere else first.

English · Reading

Identify a main idea

Select the main idea of a passage or section.

Watch the worked example

Open the video page

Find the Main Idea

This video shows how to choose the main idea of a passage or section, rather than a single supporting detail. Watch an 11+ English question solved step by step.

0:00 / 2:37

Turn on captions with the CC button. Jump to any part with the chapter buttons.

Read the transcript

Keep practising with Trace Learn. Find topics to practise next

Quick quiz: Identify a main idea

10 questions, with feedback after each one. No sign-up needed.

Read the questions in this quiz

Question 1
Choose the option that best completes the sentence.
- A.how one family helped hedgehogs return to their street
- B.why hedgehogs need small gaps cut through garden fences
- C.the number of hedgehogs counted on camera in autumn
- D.how slug pellets can harm hedgehogs in gardens
Question 2
Choose the option that best completes the sentence.
- A.how the writer enjoyed a school trip to the museum
- B.how Priya reacted to seeing the glittering gemstone room
- C.the way fossils were handled during the workshop session
- D.the sketch made of the diplodocus skeleton in the gallery
Question 3
Choose the option that best completes the sentence.
- A.how neighbours worked together to restore a neglected garden
- B.why the garden had become overrun with weeds
- C.the kinds of vegetables the neighbours planted
- D.how the school children watered the plants after lessons
Question 4
Choose the option that best completes the sentence.
- A.how the community worked together to save the local library
- B.the number of signatures collected on the petition
- C.why the bakery gave away free biscuits that weekend
- D.the way the roof of the library began to leak
Question 5
Choose the option that best completes the sentence.
- A.how a farmer restored his soil to grow healthy crops again
- B.why the wheat crop failed to grow properly at first
- C.the type of compost Farmer Reeves made from scraps
- D.the advice given by Farmer Reeves's neighbour
Question 6
Choose the option that best completes the sentence.
- A.how the family's camping trip went from bad weather to fun
- B.how Dad fixed the tent poles by torchlight
- C.why nobody caught a big fish that afternoon
- D.the way Mum told her usual ghost story
Question 7
Choose the option that best completes the sentence.
- A.how old letters revealed a grandmother's travels to Maya
- B.the flooded hotel lobby described in one letter
- C.why Amsterdam's canals were mentioned in a letter
- D.how Maya spent an afternoon reading the letters aloud
Question 8
Choose the option that best completes the sentence.
- A.how pupils of all ages took part in sports day races
- B.the sack races run by the youngest pupils
- C.why teachers set up water stations around the field
- D.the relay races completed by the older pupils
Question 9
Choose the option that best completes the sentence.
- A.how Year Five turned a muddy patch into a working garden
- B.why some seeds need more sun than others
- C.the way the farm donated compost for the beds
- D.how quickly the lettuce shoots appeared after half term
Question 10
Choose the option that best completes the sentence.
- A.how a school bird watching club recorded local birds
- B.the heron spotted once by the school pond
- C.why the club only had one old pair of binoculars
- D.the weather details written in the shared notebook

Practise it now

Three witnesses, one true account. Work out who can be trusted.

It covers most of this skill rather than all of it.

Loading the interactive exercise. Nothing you do here is saved or scored.

A worked example

One question of the kind this skill is tested with, worked all the way through: the reasoning, and what the wrong answers are there to catch.

One sentence that covers the whole passage

Read the passage, then choose the sentence that gives its main idea.

Until last year, only nine pupils at Marsh Lane cycled to school, and most of them locked their bikes to the railings. In September the school built a covered rack, ran a Saturday repair club, and asked two parents to lead a group ride each morning. By July, sixty-one pupils were cycling. The head teacher says the rack alone would never have done it.

Cycling to school rose sharply because the school changed several things at once.
Sixty-one pupils at Marsh Lane now cycle to school.
Marsh Lane built a covered bicycle rack last September.
Bikes locked to railings are more likely to be damaged.

Answer: Cycling to school rose sharply because the school changed several things at once.

How you get there

A main idea has to cover the whole passage, not one line of it. Every sentence here is about the same thing: the number of cyclists went up, and it went up after the school made three changes together. The last sentence settles it, because the head teacher says the rack on its own would not have been enough. Only one option leaves nothing out.

Why the other answers tempt

"Sixty-one pupils at Marsh Lane now cycle to school" is true, and it is the most striking number in the passage. A true detail is still not the main idea: it is one fact the main idea rests on.

If they are stuck, say this

Cover the options and say the passage back in one sentence of your own. Then pick the option closest to what you said, and check that no sentence of the passage is left out.

Now do it live in Unreliable Witness

Kitchen-table script for parents

Try this together

A friendly mini script for the breakfast table, school run or a quiet two minutes. Read it aloud as written, or make it your own.

Ready? Let's have a go at Identify a main idea together. The head teacher says the rack alone would never have done it. Here comes the question: Read the passage, then choose the sentence that gives its main idea. Before we race ahead, let us choose one good first step. Here is a helpful clue: Then pick the option closest to what you said, and check that no sentence of the passage is left out. Nice work. Now let us follow the thinking: Every sentence here is about the same thing: the number of cyclists went up, and it went up after the school made three changes together. So our answer is: Cycling to school rose sharply because the school changed several things at once. There is one sneaky trap to watch for: "Sixty-one pupils at Marsh Lane now cycle to school" is true, and it is the most striking number in the passage. Can you show me that first move again in your own words? Brilliant. No rush; we are practising a method you can reuse, not trying to win a speed contest.

What this exercise is doing

Unreliable Witness

Three witnesses, one true account. Work out who can be trusted.

A good summary keeps three things exactly as they were: the size of what happened, the reason it happened, and the details that were actually written. Distortions almost always attack one of those three. Making it bigger is exaggeration, so "clung on halfway" becomes "fell all the way to the ground" and the whole meaning flips, because a boy who holds on is brave and a boy who falls is unlucky. Swapping the reason is the sneakiest, because "the kite was stuck" becomes "his sister dared him", which invents a motive the passage never offered. Adding a detail is the easiest to miss, since invented facts sit quietly among the real ones. So when you check a summary, including your own, test each claim against the exact words: if you cannot find the line, take the claim out.

Step 1. Honest. Which witness retells the passage without bending it?
Step 2. Lies. Now catch each liar. Tap the exact words they twisted.

What to say if they get stuck

Do not ask which retelling sounds best. Ask which one you could match to the passage line by line.
A distortion is usually one phrase, not a whole sentence. Look for a word that has been made bigger, or a reason nobody actually gave.
The passage says he clung on, and it never gives a reason for the climb beyond the kite being stuck. Anything else has been added.

Open Unreliable Witness on its own page to share it

Where identify a main idea sits in the 11+

The 11+ does not test these skills in isolation, and practising one in the wrong order wastes the practice. These are the skills the curriculum map connects this one to.

This opens up: Identify a theme
Theme requires integration beyond a local main idea.

How identify a main idea differs from the skills beside it

The same exercise practises several skills, and telling them apart is often the difficulty rather than the exercise itself. On this page the skill is: select the main idea of a passage or section, and it stops where excludes theme across a whole work.

Distinguish fact and opinion
Classify one statement as presented fact or opinion. Does not require external fact checking.
Retrieve an explicit detail
Find a detail stated directly in a passage. Excludes inference and summary.

Related english skills

Identify textual moodIdentify the mood created by a short passage or poem.
Identify writer purposeIdentify why a text or section was written.
Identify writer viewpointIdentify the writer viewpoint from language choices.
Infer a character stateInfer one character feeling, motive, or attitude from textual evidence.
Infer implicit meaningDraw one supported conclusion that is not directly stated.
Interpret a word in contextInfer the meaning of one word from its sentence and passage context.
Sequence passage eventsPut explicitly described events in passage order.

All english 11+ skills

Questions parents ask about identify a main idea

What this skill involves, common mistakes and ways to practise it at home.

: Select the main idea of a passage or section. It is one of 41 named English skills in the 11+, in the reading strand, and this page carries 1 interactive exercise that practises it.
: "Sixty-one pupils at Marsh Lane now cycle to school" is true, and it is the most striking number in the passage. A true detail is still not the main idea: it is one fact the main idea rests on. The wrong answers on this skill are built out of that, not out of random numbers, so it is worth naming out loud before your child meets it under time pressure.
: Point at the next move rather than explaining the whole rule. Cover the options and say the passage back in one sentence of your own. Then pick the option closest to what you said, and check that no sentence of the passage is left out.
: Once it is secure, the skill map opens identify a theme. Theme requires integration beyond a local main idea.
: The skill map draws the line here: Excludes theme across a whole work. A question past that line is testing a different named English skill, which is worth knowing before you spend a week practising the wrong one.
: The reading strand holds 11 skills that are tested together, and the pages next to identify a main idea are identify textual mood, identify writer purpose and identify a theme. Each has its own exercise and its own link, and none of them needs an account.
: Use Unreliable Witness, embedded on this page. It is the exercise the skill map attaches to identify a main idea, it runs in the browser with no account to make, these exercises are not scored and do not save learner records. The separate quiz sends answers for marking and shows a score, without saving an assessment record. It also has its own link, so you can send it to a child without sending them anywhere else first.

Identify a main idea is the step before identify a theme

A free diagnostic maps the whole run of skills either side of this one, so practice follows the order the paper actually needs.