LEGO Structure Math Games: Fun and Easy for K-3

Lego structure math activity for kids showing lego bricks with assigned values and a lego figure built from colored bricks with free recording page included

LEGO Structure Math Games

📝 This post, LEGO Structure Math, was originally published in 2013 and has been updated with new information and resources.

We all know how to use Legos the “right” way — but have you ever tried using them to practice math skills? If you have a bin of LEGOS sitting around the house or classroom, you already have everything you need for this fun and hands-on math activity!

These LEGO Structure Math activities are perfect for Kindergarten through Grade 3 and work beautifully at home or in the classroom. No formal printables needed — just LEGOS and a little creativity!

What You Need:

✔️ LEGO bricks in 6 different sizes or colors
✔️ Paper and pencil for recording
✔️ A curious kid ready to build!

How to Play:

Boy Mama Teacher Mama: Lego Structure Math

🧱 Choose 6 sizes or colors of LEGO bricks and assign a value to each one — use smaller numbers for younger children and larger numbers for older children

🧱 Give your child a pile of these bricks only — the quantity of each color is up to you

🧱 Have your child build a structure using the chosen bricks — they can use as many or as few as they like

🧱 Set aside any unused bricks to avoid confusion

🧱 Using a piece of paper, have your child create a math sentence using the values assigned to each brick and add the numbers together

Grab a FREE Recording Template here!

Extensions:

Want to make it more challenging? Try these ideas:

💡 Challenge your child to make a structure with a smaller value than the first one
💡 Challenge your child to make a structure with a larger value than the first one
💡 Assign a target value and have your child build a structure that adds up to exactly that number — for example, can they build a structure worth exactly 25?

LEGO Structure Math with Money

Boy Mama Teacher Mama: Lego Structure Math

Take it up a notch by turning this into a money activity! Assign a price to each brick and give your child some “LEGO Bucks” to spend. They use their money to buy the bricks they want, then build their structure!

💰 Give a spending limit or simply have them build and figure out the total value at the end

💡 For a bigger challenge, give your child a $10 LEGO Buck and ask them to build a $7 structure — then figure out the change!

More Ways to Use LEGO for Math

Legos are one of the most versatile math manipulatives around! Here are a few more ideas to try:

🧱 Patterns — use bricks to practice making and extending color or size patterns

🧱 Sorting — sort bricks by color, size, and shape

🧱 Counting — use bricks to practice counting skills

🧱 Skip Counting — count the dots on a brick by 2s, 5s, or 10s

🧱 Multiplication — use a 2 by 6 brick and multiply to find the total number of dots!

Looking for More LEGO Math Ideas?

Check out our LEGO Math Activities post for even more fun ways to use LEGOS to practice math skills!

Have you tried Lego Structure Math with your students or children? Leave a comment below and let us know how it went! 💚 

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16 thoughts on “LEGO Structure Math Games: Fun and Easy for K-3”

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  9. Haha, you did Lego maths this week and I did Duplo maths, lol. You can tell the ages of our children 🙂 This is great. So comprehensive as usual! Pinning to my maths boards because I’ll want to use these ideas in the future for sure 😀

  10. Geeze Steph, how do you come up with such fabulous ideas! This is brilliant – something I wouldn’t have even considered doing with lego! Now, I wish I HAD lego! It’s on the list ffor when the Twinkles get a little older. I better bookmark this one!

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