Where is comparison hiding in Khan Academy Kids number sense?

Quick answer

Comparison is hiding in Khan Academy Kids number sense through activities that help children learn to say if one group of things is more, fewer, bigger, smaller, or equal to another group. These skills are the foundation of number sense and help children understand how numbers relate to each other.

Learning outcome

By the end of this page, you will be able to compare groups of objects and decide if one group is more, fewer, bigger, smaller, or equal to another group.

• I can match objects in two groups to see which has more or fewer.
• I can use words like "more than", "less than", "equal to" to describe groups.
• I can use visual clues like pictures, blocks, or counters to compare numbers.
• I can play games that involve comparing groups of things.

Why this matters

Comparing numbers helps children understand how many things there are and how they relate to each other. This skill is used in everyday life, like when you share toys, count your pocket money, or decide who has more cookies. In Khan Academy Kids, comparing numbers is part of building number sense, which helps children become confident with numbers and ready for more complex maths.

How it works

When comparing groups of objects, you can:

1. Count how many things are in each group.
2. Look at the pictures or objects and see which group looks bigger or smaller.
3. Match one object from each group to see if there are any left over.
4. Use words like "more than", "fewer than", or "equal to" to describe what you see.

Examples you can see

Let’s imagine you are playing a game in Khan Academy Kids where you have to compare two groups of animals.

When comparing groups, you can also use a number line or a simple chart to help you see the difference.

Try it as a mini adventure

Imagine you are going on a treasure hunt in Khan Academy Kids. You need to find the right number of coins to open a chest. You find 3 coins and your friend finds 5 coins. Who has more coins? How many more coins does your friend have?

Let’s solve this step by step:

1. You have 3 coins.
2. Your friend has 5 coins.
3. Compare them: 5 is more than 3.
4. Your friend has 2 more coins than you.

Now, try this challenge: If you have 7 marbles and your friend has 4 marbles, how many more marbles do you have?

Common mistakes

• Mistake: Thinking that a group with more objects is always bigger in size.

  Why it happens: Children might confuse the number of objects with the physical size of the objects.

  Fix: Remind them to count each object and not just look at how big they look.

• Mistake: Saying "more than" when they mean "fewer than".

  Why it happens: Sometimes children get confused by the words and say the opposite.

  Fix: Use matching to check, or ask them to count both groups and compare.

• Mistake: Not using visual clues or counters to help with comparison.

  Why it happens: Some children might not know how to use tools to help them.

  Fix: Encourage them to use fingers, blocks, or drawings to help compare.

Parent and carer guide

As a parent or carer, you can help your child compare groups of objects in simple, everyday ways:

• At home, ask your child to compare two groups of toys, like "Do you have more cars or more dolls?"
• Use food like grapes or cookies to compare amounts during snack time.
• Play games where you say a number and ask your child to show you more or fewer objects.
• Use visual aids like drawings or blocks to make comparisons clear.
• Encourage your child to say the words "more than", "fewer than", and "equal to" when comparing.

Remember: it’s okay if your child makes mistakes. They are learning and growing!

Practice questions

1. Which group has more apples: 4 or 6?
2. If you have 3 stickers and your friend has 5 stickers, who has more?
3. Are these groups equal: 7 blocks and 7 blocks?
4. Which group has fewer crayons: 2 or 8?
5. If you have 9 candies and your friend has 9 candies, are they equal?

Answers:

1. 6 apples
2. Your friend has more stickers
3. Yes, they are equal
4. 2 crayons
5. Yes, they are equal

FAQ

What is number sense?

Number sense is the ability to understand numbers and how they work. It includes comparing numbers, counting, and knowing how many things there are.

How can I help my child practice comparing numbers at home?

You can use everyday objects like toys, food, or books. Ask questions like "Which group has more?" or "Are these equal?"

Why is comparing numbers important?

Comparing numbers helps children understand how many things there are, and it’s the first step to learning addition, subtraction, and more complex maths.

What age should my child start learning to compare numbers?

Children can start learning to compare numbers as early as 3 or 4 years old, using simple activities with objects and pictures.

How does Khan Academy Kids teach comparison?

Khan Academy Kids uses fun games, pictures, and activities to help children compare groups of objects and learn words like "more than", "fewer than", and "equal to".