What does a child have to do to read a bar-chart value in the 11+?

Read one category value using the bar-chart scale. It is one of 55 named maths skills in the 11+, in the data strand, and this page carries 1 interactive exercise that practises it.

Why does my child keep getting read a bar-chart value questions wrong?

There is a specific mistake recorded against this skill: counts grid intervals as units without decoding the scale. 11+ papers are written to offer exactly that answer, so a child can be confident and still lose the mark. When it keeps happening, the fix is the misunderstanding rather than more questions.

What does read a bar-chart value lead on to?

Once it is secure, the skill map opens compare bar-chart values. A comparison requires accurate scale reading.

What is not part of read a bar-chart value in the 11+?

The skill map draws the line here: Excludes comparing several bars. A question past that line is testing a different named maths skill, which is worth knowing before you spend a week practising the wrong one.

Which other 11+ skills should we practise alongside read a bar-chart value?

The data strand holds 9 skills that are tested together, and the pages next to read a bar-chart value are read a line-graph value, read a table cell and calculate an arithmetic mean. Each has its own exercise and its own link, and none of them needs an account.

How can my child practise read a bar-chart value for free?

Use Bar Reader, embedded on this page. It is the exercise the skill map attaches to read a bar-chart value, it runs in the browser with no account to make, nothing is scored, and nothing a child does here is recorded or sent anywhere. It also has its own link, so you can send it to a child without sending them anywhere else first.

Maths · Data

Read a bar-chart value

Read one category value using the bar-chart scale.

Practise it now

Tap the Train bar. Then read its top off the scale: how many children does it stand for?

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.

Calls answered by the fire station

Start with the Chimneys bar. How many calls does it show?

Each bar shows the number of calls recorded for that incident.

Answer: 45

How you get there

The top of the Chimneys bar lines up with 45 on the scale, which means the Chimneys bar stands for 45 calls.

Why the other answers tempt

The tallest bar is not always the one the question names - check the label under the bar first.

If they are stuck, say this

Find the Chimneys bar first, then follow its top edge across to the scale on the left and read the number there.

Now do it live in Bar Reader

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 Read a bar-chart value together. Take a look at the picture. Here is what matters: Bar chart with horizontal axis Incident and vertical axis Calls: Drills is 65; Rescues is 40; Lockouts is 50; Chimneys is 45; Spillages is 10. Here comes the question: Start with the Chimneys bar. How many calls does it show? Before we race ahead, let us choose one good first step. Here is a helpful clue: Find the Chimneys bar first, then follow its top edge across to the scale on the left and read the number there. Nice work. Now let us follow the thinking: The top of the Chimneys bar lines up with 45 on the scale, which means the Chimneys bar stands for 45 calls. So our answer is: 45. There is one sneaky trap to watch for: The tallest bar is not always the one the question names - check the label under the bar first. 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

Bar Reader

Tap the Train bar. Then read its top off the scale: how many children does it stand for?

The Train bar stops level with 30 on the scale. The lines on this chart go up in 5s, and only every other line carries a number, so the bare lines in between are the ones you have to count through. The top of the bar sits exactly on a line, so you can read it straight off. Keeping your finger level as you cross to the scale is what stops a reading landing one line out.

Step 1. Find it. Tap the bar the question names.
Step 2. Read it. Now read the scale and choose how many children that is.

What to say if they get stuck

Find the bar, row or slice the question names before you read anything. Getting the label right matters as much as the reading.
The scale does not always count up in single steps. Work out what a single line is worth before you read anything off it.
Keep your finger level as you slide from the board across to the scale. Drifting up or down by a line is the commonest slip there is.

Open Bar Reader on its own page to share it

What usually goes wrong here

Counts grid intervals as units without decoding the scale.

This is the wrong answer 11+ papers are built to offer, so it is worth watching for directly: a child who does this will look confident and still lose the mark. If it keeps happening on read a bar-chart value, the fix is the misunderstanding rather than more questions.

Where read a bar-chart value 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: Compare bar-chart values
A comparison requires accurate scale reading.

How read a bar-chart value differs from the skills beside it

The same exercise practises one other skill, and telling them apart is often the difficulty rather than the exercise itself. On this page the skill is: read one category value using the bar-chart scale, and it stops where excludes comparing several bars.

Compare bar-chart values
Compare two category values on a bar chart. One comparison or difference only.

Related maths skills

Calculate an arithmetic meanFind the mean of a short supplied data set.
Compare line-graph changeCompare one change or gap between plotted values.
Compare table valuesCompare two values read from a table.
Decode a pictogram keyUse a pictogram key to determine one represented quantity.
Interpret a pie-chart sectorExpress one pie-chart sector as a fraction, percentage, or count.
Read a line-graph valueRead one plotted value at a named position.
Read a table cellFind one value at a named row and column.

All maths 11+ skills

Questions parents ask about read a bar-chart value

Answered from what the skill map records about this skill, not from a template. Every answer here is on the page, and the same questions are the page's FAQ structured data.

: Read one category value using the bar-chart scale. It is one of 55 named maths skills in the 11+, in the data strand, and this page carries 1 interactive exercise that practises it.
: There is a specific mistake recorded against this skill: counts grid intervals as units without decoding the scale. 11+ papers are written to offer exactly that answer, so a child can be confident and still lose the mark. When it keeps happening, the fix is the misunderstanding rather than more questions.
: Point at the next move rather than explaining the whole rule. Find the Chimneys bar first, then follow its top edge across to the scale on the left and read the number there.
: Once it is secure, the skill map opens compare bar-chart values. A comparison requires accurate scale reading.
: The skill map draws the line here: Excludes comparing several bars. A question past that line is testing a different named maths skill, which is worth knowing before you spend a week practising the wrong one.
: The data strand holds 9 skills that are tested together, and the pages next to read a bar-chart value are read a line-graph value, read a table cell and calculate an arithmetic mean. Each has its own exercise and its own link, and none of them needs an account.
: Use Bar Reader, embedded on this page. It is the exercise the skill map attaches to read a bar-chart value, it runs in the browser with no account to make, nothing is scored, and nothing a child does here is recorded or sent anywhere. It also has its own link, so you can send it to a child without sending them anywhere else first.

One wrong answer is a slip, the same wrong answer every time is a habit

A free diagnostic looks at which mistakes repeat across all four subjects, not just whether read a bar-chart value was right on the day.

Start the free 11+ diagnostic