LEGO Challenge Cards

This giant collection of LEGO challenge cards is a simple prep, fun way to sneak some STEM learning (science, technology, engineering and math) into the day. With cards that range from easy to difficult, little engineers will love tackling the designs.

Snag your set below and for more building fun, check out our Landmark STEM Challenge Cards!

Getting Ready

To prep for these LEGO challenge cards, I printed the cards (below) on cardstock to give them extra durability.

Then, I cut along the faint gray lines to separate them.

Love these FREE LEGO challenge cards! So many fun STEM ideas in the set.

Note: If you’ll be using the cards in a classroom, you may want to laminate the cards to make them even sturdier.

I grabbed our box of small LEGOS for this first round of play, but DUPLOS would work just as well. 

LEGO Challenge Cards

Middle Brother is LEGO obsessed, so he couldn’t wait to get his hands on the first challenge card. To add a little excitement, we mixed up the stack and he drew the top card: Fill the rectangle below without going over its edges.

Awesome LEGO Challenge Cards! My little LEGO builders will love this STEM project.

It was pretty tricky to find the solution, but after lots of trial and error, Middle Brother found it.

He pushed the card off to the side and grabbed card #2: Build your favorite fruit and see if a friend can guess it.

Free LEGO challenge cards for kids! Awesome STEM activity!!

I have to admit that I had a big advantage figuring out what his little hands were making since I make nearly every meal he eats. But after a few minutes he proudly showed me his red and green creation. He was thrilled when I easily guessed it was an apple. “YES!” he exclaimed.

One card after the next, he tackled the challenge head on. He made patterns…

LEGO challenge cards for kids! Awesome STEM activity.

Built geometric shapes…

My kids love these LEGO challenge cards! Awesome STEM activity for LEGO fans.

And so much more. He loved every second of these LEGO challenge cards. 

Grab Your Set

Ready to play along too?! Click the blue download button to download your free cards and then snag our Landmark STEM Challenge Cards in our shop!

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  1. Becky Spence

    Malia. Wow. This looks absolutely AMAZING! Love your new site. I’ll be coming here often to get ideas for my kids for SURE!

    • Malia

      That means the world coming from you, Becky!!! Thank you for your kind note. You made my day!


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Hi, I’m Malia.

I LOVE helping Pre-K, Kindergarten and First Grade teachers save time, stay inspired and give EVERY student bigger results. I’m so glad you’re here!