Could playing with Legos help children grasp mathematics concepts better? (Photo by Yavdat on Shutterstock)
In A Nutshell
- Researchers tested a six-week Lego-based program called SPACE, delivered by regular teachers to 6- and 7-year-olds in 16 UK schools.
- Children who participated showed statistically significant improvements in both mental rotation (a key spatial skill) and mathematics, especially in geometry and problem-solving.
- The program did not significantly improve spatial language — terms like “above” or “between” — likely because the vocabulary used during sessions didn’t align with test items.
- The study suggests that hands-on spatial activities like Lego building, when embedded into regular classroom teaching, can boost math learning without expensive tech or extra tutoring.
SURREY, England — Your child is struggling with math homework, frustrated with fractions and geometry problems that feel impossible to solve. The solution might not be more worksheets or tutoring sessions, but something far more enjoyable: building with Lego blocks.
A study involving over 500 students across 16 primary schools in England found that kids who participated in a six-week Lego-based program made measurable gains in both spatial thinking and mathematics compared to classmates who received traditional instruction. It was regular classroom teachers, not the researchers, who led the program during normal school hours.
For parents and educators frustrated with traditional math instruction methods, the research offers compelling evidence that hands-on, engaging activities can lead to real academic improvement. The full paper is published in Mind, Brain, and Education.
How Building Blocks Boost Brain Power
The research team, led by Dr. Emily Farran of the University of Surrey, created the SPACE program, short for SPAtial Cognition to Enhance mathematical learning. Instead of relying on drill-and-practice worksheets, the program had 6- and 7-year-olds spend 30 minutes twice a week building Lego models from picture-based instructions.
Each session followed a consistent routine. Students watched a short video that introduced a themed story (pirates, aliens, superheroes) then worked individually to build up to six Lego models using step-by-step visual guides. Accuracy was emphasized over speed, and the children dismantled each model before starting the next.
To prepare, teachers received professional development training on how spatial thinking connects to math and were given prompt cards suggesting phrases to encourage mental visualization. One example: “Before you try, can you see your Lego model in your head? Can you turn the brick in your head to decide which way it should go?”
The sessions replaced about one-quarter of students’ regular math lessons over the six-week period.
Lego Play Leads To Improvements in Math and Mental Rotation
Of the 409 children who completed the SPACE program and the 104 children in the control group who received normal lessons, those in the Lego-building group showed statistically significant improvement in their ability to mentally rotate objects. This skill — imagining how shapes look when turned — is a core component of spatial reasoning.
They also performed better on math assessments that covered geometry and problem-solving tasks. When children work with shapes, graphs, or fractions, they rely on spatial visualization, the skills that the Lego program appears to strengthen.
However, while both mental rotation and math scores improved in the Lego group, the researchers found that improvement in one did not directly explain improvement in the other. In statistical terms, the gains in math were not mediated by gains in mental rotation alone. Other unmeasured spatial skills, like spatial memory or number-space mapping, may have played a role.
Why Traditional Math Teaching Leaves Gaps
Today, spatial reasoning is largely absent from mathematics curricula in the UK and many other countries. The researchers argue that this is a missed opportunity, especially given growing evidence that spatial skills are key to success in science, technology, engineering, and math (STEM).
Block-building engages multiple spatial abilities at once. Children mentally rotate bricks to fit a model, visualize complex forms, and hold images in their mind as they work. These exercises train the brain in ways traditional math worksheets do not.
Perhaps most importantly, the SPACE program didn’t require high-tech tools or expensive equipment. Just Lego bricks, guidance, and time to build.
The only area where children did not show added benefit was spatial language. This is the ability to understand and use words like “above,” “below,” or “through.” The researchers suggest that the language used during the Lego sessions may not have aligned closely enough with the vocabulary tested afterward.
Rethinking Hands-On Learning With Legos
The study’s exciting findings can reach far beyond the 16 classrooms involved. “Our findings have implications for school curricula where spatial thinking is largely absent; a spatialized mathematics curriculum could raise children’s mathematics attainment,” the researchers write.
They suggest that future programs might embed spatial thinking more fully across math instruction, rather than isolate it in special sessions. That kind of integrated approach could potentially lead to even stronger gains.
In short, better math education might be more hands-on than we think. For young learners, playing with blocks may help lay the foundation for understanding numbers—and doing it with the support of classroom teachers could make a big difference.
Paper Summary
Methodology
The researchers conducted a quasi-experimental study with 409 children in the intervention group and 104 children in the control group across 16 schools in Surrey and Portsmouth, England. Students were 6-7 years old (Year 2) and were assigned to conditions at the whole-class level. The intervention group participated in the SPACE program: twelve 30-minute sessions over six weeks where children built Lego models from pictorial instructions during regular mathematics time. Teachers received professional development training and used prompt cards to encourage spatial thinking. All students completed pre- and post-intervention assessments of spatial language, mental rotation, and mathematics performance, administered by classroom teachers.
Results
Children in the SPACE intervention group showed significant improvements compared to the control group in mental rotation (medium effect size) and mathematics performance (small effect size), but not in spatial language skills. The intervention group scored higher on post-intervention assessments even after controlling for pre-intervention performance. Both groups improved over time due to normal development and instruction, but the intervention group showed additional gains beyond typical progress.
Limitations
The study had a smaller control group than ideal and used a quasi-experimental rather than fully randomized design. The mathematics assessment was custom-designed for this study rather than using standardized measures. The research only measured immediate post-intervention effects without examining long-term retention. Additionally, many children scored at ceiling levels on the mental rotation task at pre-intervention, which may have limited the ability to detect the full extent of spatial skill improvements.
Funding and Disclosures
This research was funded by the Education Endowment Foundation and partially supported by the UKRI Economic and Social Research Council. The authors declared no conflicts of interest. The study was approved by the University of Surrey ethics board.
Publication Information
Farran, E.K., Gilligan-Lee, K.A., Mareschal, D., Živković, M., Bartuševica, S., Bell, D., Jay, T., & Gilmore, C. (2025). “Teacher Delivered Block Construction Training Improves Children’s Mathematics Performance,” published in Mind, Brain, and Education online June 17, 2025.







