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Khan Academy Kids Maths

Khan Academy Kids sorting games maths mission

A practical mini-mission using sorting games to practise classification through questions, examples and child-friendly challenges.

Quick answer

Sorting games in Khan Academy Kids help you learn to group things by their features, like colour, shape, size, or type. This skill helps you solve problems and understand how things are alike or different.

Learning outcome

By the end of this page, you will be able to sort objects or pictures into groups based on one clear feature, like colour or shape. You will also be able to explain why you sorted them that way. Success signs:
  • You can put similar things together in one group.
  • You can choose the right sorting rule, like "all red things" or "all round things".
  • You can explain why you sorted your items in that way.
  • You can find more than one way to sort the same group of things.

Why this matters

Sorting helps you understand the world around you. When you play sorting games, you are learning how to compare and classify. This skill is useful in many ways:
  • When you clean up your toys, you sort them by type (cars, dolls, blocks).
  • When you cook, you sort ingredients by colour or size.
  • When you play games, you sort cards or pieces by their features.
  • Sorting helps you solve puzzles and find patterns.
In school, sorting helps you understand data, make graphs, and think logically. It's also a fun way to learn about numbers, shapes, and how things connect.

How it works

Sorting is like putting things in groups so they are easy to find or compare. You can sort by:
  • Colour
  • Shape
  • Size
  • Function (what it is used for)
  • Number of sides or points
To sort things:
  1. Look at the items carefully.
  2. Choose one feature to group by (like red or round).
  3. Put all items with that feature together.
  4. Check if all items in the group have that feature.

Examples you can see

Let’s imagine you have a box of different toys. Here’s how you might sort them: Example 1: Sorting by colour
  • You have 5 toys: a red car, a blue car, a green ball, a red ball, and a blue ball.
  • You sort them into 3 groups: red toys, blue toys, green toys.
  • Red group: red car, red ball
  • Blue group: blue car, blue ball
  • Green group: green ball
Example 2: Sorting by shape
  • You have 4 toys: a square block, a round ball, a triangle block, and a circle.
  • You sort them into 2 groups: round things and square/three-sided things.
  • Round group: round ball, circle
  • Shape group: square block, triangle block
Example 3: Sorting by size
  • You have 3 toys: a big teddy, a small teddy, and a medium teddy.
  • You sort them into 3 groups: big, medium, small.

Try it as a mini adventure

The Sorting Mission You are a detective on a special mission to help animals in the jungle! Each animal has a puzzle they need to solve. You must sort their items to help them. Step 1: You meet a monkey who has 6 bananas and 6 apples. You must sort them into two groups: fruit and fruit. Step 2: You meet a bird who has 4 feathers, 4 eggs, and 4 nest materials. You must sort them into 3 groups: feathers, eggs, and nest materials. Step 3: You meet a snake who has 3 different-sized sticks. You must sort them by length: long, medium, short. Step 4: You meet a rabbit who has 5 carrots, 5 carrots, and 5 carrots. You must sort them by colour: orange, orange, orange. Step 5: You meet a tiger who has 2 toys and 2 snacks. You must sort them by type: toys and snacks. Can you help all the animals? Try sorting your own items at home and see how many ways you can group them!

Common mistakes

  • Mistake: Sorting items by more than one feature at once.
    Why it happens: It can be confusing to think about two things at once.
    Fix: Choose just one feature to sort by at a time. For example, sort by shape only, then by colour only.
  • Mistake: Not checking if all items in a group match the sorting rule.
    Why it happens: It's easy to rush and not double-check.
    Fix: Look at each item in the group and ask, “Does this belong here?”
  • Mistake: Thinking that all groups must have the same number of items.
    Why it happens: Children often think groups must be equal.
    Fix: It’s okay for some groups to have more or fewer items.

Parent and carer guide

Sorting games are a great way to help your child learn. Here's how you can support them:
  • Ask questions like, “How did you sort these?” or “Why did you put this here?”
  • Use everyday items like buttons, toys, or food to practice sorting.
  • Let your child try different ways to sort the same group of items.
  • Encourage them to explain their thinking, even if they make a mistake.
  • Don’t worry if they take time — sorting is a skill that builds with practice.
If your child gets frustrated, take a break and come back to it later. The most important thing is that they are learning and having fun.

Practice questions

  1. Sort these shapes by shape: a circle, a square, a triangle, a circle, a square. What are the groups?
  2. Sort these fruits by colour: a red apple, a green apple, a yellow banana, a red apple. What are the groups?
  3. Sort these toys by size: a big ball, a small ball, a medium ball. What are the groups?
  4. Sort these animals by type: a dog, a cat, a fish, a dog. What are the groups?
  5. Sort these clothes by colour: a red shirt, a blue shirt, a green shirt, a red shirt. What are the groups?
Answers:
  1. Circle group, Square group, Triangle group
  2. Red group, Green group, Yellow group
  3. Big group, Medium group, Small group
  4. Dog group, Cat group, Fish group
  5. Red group, Blue group, Green group

FAQ

What is sorting in maths?

Sorting in maths means putting things into groups based on one feature, like colour, shape, or size.

Why do we need to sort things?

Sorting helps us understand what things have in common and makes it easier to find what we need. It also helps us think logically and solve problems.

Can I sort things in more than one way?

Yes! You can sort the same items by different features. For example, you can sort toys by colour, and then by shape.

How can I practice sorting at home?

You can use toys, food, buttons, or anything around you. Try sorting them by shape, colour, or size. Ask your child to explain how they sorted them.

Is sorting useful in real life?

Yes! Sorting helps with cleaning, cooking, playing games, and even understanding data in school. It’s a life skill that helps you stay organized.