New sculpture boosts maths and science learning for visually impaired learners

Created with accessibility at its core, Euler’s Stag brings abstract mathematical concepts to life through richly textured surfaces that can be explored by touch. Catenary curves, Penrose tiling, Voronoi patterns and more have been crafted in detail, allowing learners to engage with them physically. A specially designed plaque, developed in collaboration with the Royal National Institute of Blind People (RNIB), includes braille, raised text and a QR code linking to an audio guide, ensuring multiple entry points for different visual needs.

The project was co-designed by University of Hertfordshire staff members James Collett, a Dynamics lecturer, and Naomi Hargraves, a lecturer on the University’s model design programme, with early input from student consultant Heather Tymms, whose lived experience as a partially sighted student studying the included mathematical concepts helped to guide the initial design.

Euler’s Stag sculptor and co-designer Naomi Hargraves said:

“Euler’s Stag is more than a sculpture, it’s a tactile learning tool created to break down barriers in STEM education. By combining touch, audio, and inclusive design, we want all students - regardless of visual ability - to access and enjoy the beauty of mathematics.”

While Heather was the primary visually impaired contributor, the team also drew on research into spatial visualisation to benefit any students who struggle to imagine complex 3D forms. The RNIB played a vital role in ensuring the accessibility of the plaque, manufacturing the final sign and working with the University’s Equality, Diversity and Inclusion office.

Installed in the University’s School of Physics, Engineering and Computer Science, Euler’s Stag will be used both in formal teaching such as small-group tutorials and for individual exploration. The tactile and audio combination means that the sculpture is not only a resource for visually impaired students, but also a powerful teaching aid for all learners.

Professor Dan McCluskey, Dean of the University of Hertfordshire’s School of Physics, Engineering and Computer Science, said:

“Euler’s Stag is a beautiful reminder that mathematics can be both felt and seen. I think Naomi has created a wonderful piece and I am proud to have it displayed prominently within my school. Well done to everyone involved.”

University of Hertfordshire Arts has now included the sculpture in its permanent collection, ensuring it will be protected and maintained for years to come. Looking ahead, Naomi Hargraves hopes to extend her work on tactile model-making into postgraduate research, exploring further how spatial visualisation can support inclusive STEM education.