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 then and then take our 5 day challenge to set up STEM centers your students will BEG to repeat all year long!

Getting Ready

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

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

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. 

Playing with the 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.

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.

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 and 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…

Built geometric shapes…

And so much more. He loved every second of it. 

Grab Your Set

Ready to play along too?! Click the blue download button to download your free cards and then take our 5 day challenge to set up STEM centers your students will BEG to repeat all year long!