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Scratchjr Maths

ScratchJr repeat blocks maths mission

A practical mini-mission using repeat blocks to practise multiplication readiness through questions, examples and child-friendly challenges.

Quick answer

Using repeat blocks in ScratchJr helps you learn multiplication by showing equal groups and repeated actions, like making 3 groups of 4 stars or moving a character 5 times.

Learning outcome

By the end of this page, you will understand how to use repeat blocks in ScratchJr to show equal groups, which helps you get ready for multiplication. You will be able to:
  • Use a repeat block to show the same action happening multiple times
  • See how equal groups can be used to make bigger numbers
  • Build a simple ScratchJr project that shows repeated actions
  • Understand how this connects to multiplication

Why this matters

Learning how to use repeat blocks in ScratchJr is like learning to count in a fun way. It helps you understand that multiplication is just repeated addition. For example, if you do something 3 times, and each time you do 4 things, that's the same as 3 groups of 4. This is how you start to understand multiplication without even knowing it! In games, sports, and everyday life, you often see things that happen the same way over and over. This helps you get ready for bigger maths later on.

How it works

Using repeat blocks in ScratchJr means you tell your character to do something a certain number of times. This is how you show equal groups. Here’s how it works step by step:
  1. Choose a character in ScratchJr
  2. Drag a repeat block onto the screen
  3. Put the number of times you want to repeat something inside the block
  4. Put actions inside the repeat block that your character will do
  5. Click the green flag to see your character do the action over and over

Examples you can see

Let’s imagine you are in a world where you are a space explorer. You land on a planet where there are 4 aliens, and each alien has 3 shiny rocks. To show this in ScratchJr, you would:
  1. Choose a character to be your explorer
  2. Use a repeat block that says "repeat 4 times"
  3. Inside the repeat block, make your character move forward and collect 3 rocks each time
  4. When you click the green flag, your character will go to 4 aliens and collect 3 rocks from each one
This is the same as saying 4 groups of 3, which is 4 × 3 = 12 rocks in total. Another example: You are building a tower with LEGO blocks. You want to make 5 rows, and each row has 6 blocks. In ScratchJr, you can make a repeat block that says "repeat 5 times", and inside it, your character builds 6 blocks each time. This shows 5 groups of 6, which is 5 × 6 = 30 blocks.

Try it as a mini adventure

Adventure: The Magic Forest You are a young wizard in a magical forest. Your mission is to collect 3 magic flowers from each of 5 different trees. You must use a repeat block in ScratchJr to show your journey.
  1. Choose a wizard character
  2. Set a repeat block to repeat 5 times
  3. Inside the repeat block, make your wizard move to a tree, pick up 3 flowers, and return to the start
  4. Click the green flag and watch your wizard collect flowers
This adventure shows 5 groups of 3, which is 5 × 3 = 15 flowers in total. The repeat block helps you show this clearly and makes it fun to learn!

Common mistakes

  • Mistake: Putting the wrong number in the repeat block.
    Why it happens: You might accidentally type 4 instead of 5 when you need 5 groups.
    Fix: Count your groups first, then write the correct number in the repeat block.
  • Mistake: Forgetting to put actions inside the repeat block.
    Why it happens: You might think the repeat block works on its own.
    Fix: Make sure you drag actions into the repeat block so your character knows what to do.
  • Mistake: Not using the repeat block for equal groups.
    Why it happens: You might make the same action happen a different number of times.
    Fix: Check that each group has the same number of actions, like 3 flowers from each tree.

Parent and carer guide

Parents and carers can help by:
  • Encouraging the child to count how many groups they want
  • Helping them explain what each group has in it (like 3 flowers, 4 blocks)
  • Playing the project together and asking questions like "How many times did your character do something?"
  • Using everyday examples to show equal groups (like 3 plates with 4 cookies each)
  • Not worrying if the child makes a mistake – it’s part of learning!
Remember, the goal is not to get the right answer perfectly, but to understand how equal groups work and how repeat blocks show this.

Practice questions

  1. How many times do you need to repeat to show 4 groups of 2?
  2. If you use a repeat block 6 times and each time your character does 3 actions, how many actions in total?
  3. What is 3 × 4 using repeat blocks?
  4. How many groups of 5 can you make with 15 items?
  5. Can you use a repeat block to show 2 groups of 7? How many times would you repeat?
Answers:
  1. 4 times
  2. 18 actions
  3. 12 (4 groups of 3)
  4. 3 groups
  5. 7 times

FAQ

What is a repeat block in ScratchJr?

A repeat block in ScratchJr is a tool that lets your character do the same action over and over. It helps show equal groups, which is the start of learning multiplication.

Why is learning repeat blocks good for maths?

Learning repeat blocks helps you understand that multiplication is about equal groups. For example, 3 groups of 4 is the same as 3 × 4. This makes multiplication easier to understand later.

Can I use repeat blocks for any kind of maths?

Yes! You can use repeat blocks to show addition, multiplication, and even patterns. For example, if you repeat 3 actions 4 times, you are adding 3 four times, which is the same as 3 × 4.

How can I practice with repeat blocks at home?

You can make your own projects in ScratchJr showing equal groups. Try making a character collect 5 apples from each of 3 trees, or move 4 steps forward 6 times. This helps you see how groups work!

What age is best for learning repeat blocks?

Children as young as 4 can start to understand repeat blocks. It’s a fun way to get ready for more complex maths like multiplication and division.