Bar graph interpretation made simple
21 October 2026
Why bar graphs matter in 11+ maths
Bar graphs are a key part of the 11+ maths test. Children are expected to read information from a bar graph, compare values and answer questions based on the data.
How to read a bar graph
Start by checking the labels on the axes. The horizontal axis usually shows categories, and the vertical axis shows numbers or amounts. Look at the height of each bar to find the value for each category.
Comparing and interpreting values
To compare, look at the bars side by side. Find the tallest bar to see which category has the highest value. To answer questions, read the exact values and work out differences or totals as needed.
Worked example
A bar graph shows the number of books read by four children: Alice (5), Ben (7), Cara (3), Dan (6).
Step 1: Read the values from the graph. Alice - 5, Ben - 7, Cara - 3, Dan - 6.
Step 2: Compare the numbers. Ben has the highest bar at 7.
Step 3: Calculate the difference between Ben and Cara: 7 - 3 = 4.
The correct answer is Ben read 4 more books than Cara.
Key insight: Bar graph practice helps children spot trends, compare data and answer questions quickly. Encourage your child to explain how they reach each answer, not just what the answer is.
A tip for parents
Ask your child to create simple bar graphs from everyday information, like favourite fruits or pets at home. This builds confidence and makes practice feel relevant.
