Valentine’s Day is the perfect opportunity to combine creativity and learning with fun STEM activities for kids. One of the most exciting challenges you can try is building a LEGO heart! This engaging activity encourages children to think critically, design creatively, and practice fine motor skills while celebrating the season of love. Plus, we’ve included free worksheets and task cards to help you get started!
Valentine’s Day STEM Activities: LEGO Heart Challenge
.png)
The LEGO Heart Challenge is a hands-on STEM activity that brings engineering, math, and creativity to life in a festive way. Kids can use colorful bricks, like a 1x1 LEGO piece, to design unique heart patterns while exploring concepts like balance, symmetry, and stability. With resources available on platforms like LEGO.com and tools like Google Workspace for organizations, this activity is simple to implement.
You can easily access our free STEM challenge worksheets using Google Chrome, or visit Google Chrome download to ensure you’re ready to bring this engaging activity to your classroom. It’s the perfect way to make Valentine’s Day both educational and fun!
Engineering Concepts: Building a sturdy and visually appealing heart structure.
- Children can experiment with different building techniques in this activity to ensure their heart design is strong and attractive. This introduces basic engineering principles such as stability, balance, and structure.
Mathematics: Counting blocks, comparing sizes, and exploring symmetry.
- As they work, children can count the number of blocks they use, compare sizes, and even analyze how to split the heart into symmetrical halves. This helps develop essential math skills in a fun, hands-on way.
Creativity: Designing unique heart patterns with colorful LEGO bricks.
- Beyond the structural elements, kids can express their creativity by choosing colors and patterns for their hearts. This encourages artistic thinking and personal expression.
This activity is suitable for kids of all ages, from preschoolers to elementary school students, making it an excellent addition to your Valentine’s Day celebrations.

Materials Needed
To start this activity, you’ll need:
- LEGO bricks in various colors (red, pink, blue, green, yellow, purple, orange, white, black, and gray)
- A LEGO baseplate or board (to build on)
- Printable worksheets and task cards (available at the bottom of this article)
Step-by-Step Instructions
1. Gather Materials
2. Explore Heart Designs
3. Build the Heart Structure
4. Add Creativity
5. Reflect on the Process
Why Choose a LEGO Heart STEM Activity for Kids?
It Encourages Teamwork and Collaboration:
It Boosts Creativity and Critical Thinking:
This activity inspires kids to think outside the box. Instead of copying pre-made designs, children are encouraged to imagine their own unique heart structures using colorful bricks. The open-ended nature of this challenge develops creative thinking and gives kids a sense of accomplishment when they bring their vision to life.
It Introduces Math and Engineering Concepts:Building hearts with LEGO pieces is a hands-on way to explore symmetry, balance, and stability. Kids count the number of bricks used, identify patterns, and experiment with structural designs. These skills are foundational in engineering and mathematics, making this activity as educational as it is fun.
It’s Easy to Set Up and Use Anywhere:
This no-prep activity can be seamlessly integrated into your lesson
plans or used as a quick sub plan. All you need are LEGO bricks, and
with tools like Google Workspace, you can organize instructions and
share resources easily. For additional inspiration or heart-building
guides, visit LEGO.com.
It Teaches Patience and Resilience:
Kids may not always succeed on their first try, but that’s the beauty
of the Engineering Design Process (EDP). When a design isn’t sturdy or
symmetrical, they can identify the issue, improve their plan, and try
again. This teaches perseverance and problem-solving in a fun and
constructive way.
Download Free Worksheets and Task Cards
Get Started with LEGO Heart STEM Activities Today!
Download the free STEM challenge worksheets using Google Chrome
or visit Google Chrome download to get access to helpful resources
and reflection questions. Whether you're incorporating it into
your Valentine's Day celebrations or simply looking for an
engaging classroom activity, the LEGO Heart Challenge is a
fantastic way to combine learning and fun!
Valentine’s Day STEM Activities: LEGO Heart Challenge
LEGO STEM Challenge Reflection worksheet
Download the free STEM challenge worksheets using Google Chrome or visit Google Chrome download to get access to helpful resources and reflection questions. Whether you're incorporating it into your Valentine's Day celebrations or simply looking for an engaging classroom activity, the LEGO Heart Challenge is a fantastic way to combine learning and fun!
.png)
LEGO STEM Challenge Reflection worksheet
Happy building, and enjoy the STEM fun!
0 Comments