What Is A Venn Diagram: Explained For Primary School Teachers, Parents And Children

In this post we will be explaining what venn diagrams are, how they can be used and what your child will be learning about them throughout primary school. We’ve also included a number of venn diagram based questions to test your child’s skills, so take a look!

What is a venn diagram?

A Venn diagram (named after mathematician John Venn in 1880) is a method used to sort items into groups.

Venn diagrams explained: How to interpret them

These diagrams are usually presented as two or three circles overlapping, with the overlapping sections containing items that fit into both (or all, if three circles overlap) groups. Items which don’t belong to either/any group are placed on the outside of the circles.

An example of a simple venn diagram:

Simple venn digram example

In the example above, you can see that the words have been sorted into one of four categories: those with 5 letters (placed in the left circle), those with a double consonant (placed in the right circle), those with both 5 letters and a double consonant (placed in the centre overlap) and those with neither (placed round the edge).

Below is another example with three circles creating eight groups.

Three circle venn diagram example
Download Free Resources

Venn Diagram Worksheet For KS2

Download these 10 questions to help children understand how to read and use Venn diagrams. Includes answers.

Download Free Now!

When will my child learn about Venn diagrams?

Venn diagrams don’t officially appear in the National Curriculum until Key Stage 3 (secondary school), but your child could be introduced to them from as early as Year 2 as a method of interpreting or presenting data.

Wondering about how to explain other key maths vocabulary to your children? Check out our Primary Maths Dictionary, or try these other maths terms:

Venn diagram examples

To help your child understand the different ways in which a venn diagram can be used, here is a variety of diagrams that they may come across.

Number venn diagram examples

An example of a venn diagram which includes the 3x table and 10x table.

An example of a venn diagram including the 5x table and even numbers.

Word venn diagram examples

Venn diagram for kids

Venn diagram example for children
An example of a venn diagram you could make with your child.

Venn diagram practice questions

1) Year 2: Write each of these numbers in its correct place on the sorting diagram: 40, 8 and 15

Venn diagram worksheet question 1

2) Year 3/4: Joe asked the children in his class which flavours of ice-cream they like. He recorded the results in a Venn diagram. How many children like chocolate ice-cream? How many children do not like vanilla ice-cream?

Venn diagram worksheet question 2

3) Year 6: In a survey people were asked if they like tea and coffee. The results are in this Venn diagram. What percentage of people in the survey like both tea and coffee? What percentage of people in the survey do not like coffee?

Venn diagram worksheet question 3
Third Space Learning Upsell Section


Every week Third Space Learning’s specialist primary maths tutors support thousands of students across hundreds of schools with weekly online 1 to 1 maths lessons designed to plug gaps and boost progress.


Since 2013 these personalised one to one lessons have helped over 150,000 primary and secondary students become more confident, able mathematicians.


Learn how the programmes are aligned to maths mastery teaching or request a personalised quote for your school to speak to us about your school’s needs and how we can help.


FREE Ultimate Maths Vocabulary List [KS1 & KS2]

An A-Z of key maths concepts to help you and your pupils get started creating your own dictionary of terms.

Use as a prompt to get pupils started with new concepts, or hand it out in full and encourage use throughout the year.

Download free