Our People

At SuMS, our team is made up of people who are passionate about our mission; to inspire exceptional young mathematicians from all backgrounds into high-potential STEM pathways by providing an innovative education that supports exploration beyond A Levels into real-world applications.

We are all committed to creating a unique post-16 learning experience that supports our students to thrive, achieve their potential and prepare for their next steps. We will challenge, nurture and encourage every individual in our care and will always endeavour to make SuMS a happy school in which every student achieves their best possible outcomes. 

Read more about us...

Mrs Shillabeer, Co-Headteacher

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Mrs Shillabeer read Maths at the University of Oxford and has a Masters Degree in Maths Education from UCL. She began teaching in 2005 and has a wealth of experience in a variety of schools and in a number of different roles.  

Most recently she was the Assistant Head (Academic) at King's College London Maths School (KCLMS) where she oversaw the UCAS programme alongside the Challenge and Extension Programme, preparing students for university entrance examinations and interviews.

As a founding Co-Headteacher at SuMS Mrs Shillabeer believes strongly in the mission of our school which is to widen participation in mathematical sciences. She believes all students, regardless of their background, race, gender, special educational needs, should be able to access university degrees, apprenticeship and internships in STEM-related subjects. She is excited to see SuMS develop into a diverse, inclusive school that opens doors for those who need it most.

In her spare time she enjoys baking (and has been known to make a wedding cake or two), learning Japanese and reading.

Most often found: arguing with her cats over who gets to sit on the sofa!


Ms Kettleborough, Co-Headteacher

IMG 20230706 162702 666Ms Kettleborough was born and raised in Manchester before joining Imperial College London to study an integrated Masters in Physics with a year in Europe. She is still very proud of her northern roots, and enjoys speaking French when she can.

She went straight into teaching and has led a variety of Physics departments before her most recent position as Assistant Head (Personal Development, Behaviour and Welfare) at King’s College London Maths School (KCLMS). There she led the pastoral side of the school, working on structures to promote positive mental health for staff and students alike. She enjoys taking students out into the wild and has been known to teach Irish Dancing when the opportunity arises!

Ms Kettleborough has been a strong advocate for the under-represented in the mathematical sciences throughout her career, hosting events for Women in STEM and participating in research for gender-sensitive classrooms. She is excited to have the opportunity to embed an ethos of inclusivity and diversity into the heart of Surrey Maths School.

In her spare time she enjoys playing in her community wind band, going on wild camping adventures, and generally trying to fit too much into the day.

Most often found: going for a run either up a hill or through some mud somewhere!


Ms Cameron, Lead Teacher of Outreach and Teacher of Mathematics

Nathalie CameronMs Cameron is a proud south Londoner who just about crossed the river to read Maths at Kings College London and then a Masters in Educational Leadership at the IOE. She began teaching in 2010, fulfilling a wide range of leadership roles both within Mathematics departments as well as pastorally in both mainstream and alternative provisions. 

Ms Cameron has a passion for nurturing the whole child, working to ensure that all students are able to meet their full potential both in and out of the classroom as well as see themselves in their learning. Most recently, this has included providing tuition for students with EHCPs out of education, using trauma-informed practice to not only support them to be successful mathematicians but also spark a curiosity and love of mathematics. 

As part of her Outreach role, Ms Cameron is excited to put SuMS on the map as an inclusive school, fostering an environment where STEM-based subjects are celebrated at all levels.

In her spare time, she enjoys playing competitive netball, learning Korean and reading as many books as possible. 

Most often found: exploring the local farms and soft plays with her puzzle-loving toddler. 


Mr George, Lead Teacher of Future Pathways, Teacher of Mathematics and DEI Officer

Craig GeorgeMr George grew up in Nottingham before studying Maths at Bristol University. He is also very proud of his northern roots and hopes he has not lost too much of his accent!

He has spent the last 16 years teaching Maths and joins us from RGS Guildford where he was Assistant Head Diversity and Inclusion and Deputy Head of Maths. As the DEI Officer for Surrey Maths School, Mr George is looking forward to preparing students to be global citizens, to live, work and thrive in a multi-cultural society in which they drive forward change and celebrate difference.

Mr George is an advocate for positive mental health and he believes the stigma surrounding these issues should be challenged. He will not shy away from honest conversations and hopes that students at Surrey Maths School will feel comfortable talking about their mental health needs.

In his spare time he enjoys cooking, going to the gym and scuba diving.

Most often found: trying to convince Ms Kettleborough that Nottingham is just as northern as Manchester!


Mr Tizard, Lead Teacher of Outreach and Teacher of Mathematics

More info to follow very soon! 


Dr Brierley, Teacher of Physics

More info to follow very soon!


Mrs Ryzak-McGhee, Teacher of Economics

Mrs Ryzak-McGhee read Philosophy, Politics and Economics at Oxford before spending 5 years in industry as an executive remuneration consultant (she helped company directors decide what to pay CEOs).  She then moved into teaching and was most recently Head of Economics at Reigate Grammar School.

Mrs Ryzak-McGhee believes that Economics is the perfect subject for anyone who wants to learn how to think, not what to think. She is (very) excited to help a classroom of keen and mathematically able economists to collaboratively explore some of the big questions about the society they live in, such as whether we can accurately model human behaviour and how governments can best respond to economic and social problems like inflation and the cost of living crisis.

In her spare time, she enjoys reading, baking and going for long walks.

Most often found: exploring the great outdoors with her daughters


Mrs Stapledon, Coordinator

Ashley StapledonMrs Stapledon studied French & Psychology at Keele University, before progressing to Leeds University to study for a PGCE. After teaching English in France and French in England she decided to pursue a career in business, and spent several years in a variety of Learning & Development roles in companies including Great Plains Software, Microsoft, Experian and Sanofi-Aventis. After a career break to raise her son she was keen to return to the world of education, and is delighted to be working at Surrey Maths School. She believes passionately in the value of education and the importance of making high-quality learning available to everyone through open access and understanding individual needs. 

In her role at SuMS she enjoys supporting students and their families, from their initial point of contact with the school, through the admissions process, to the very exciting day on which the students enrol! She also loves building strong partnerships with local organisations, such as the University of Surrey, so that every SuMS student can benefit, and promoting SuMS as a great place to study through our social media channels. 

In her spare time she enjoys walking her dogs, practising basketball skills with her son and trying to learn to play the flute.

Most often found: with her nose in a book or persuading friends and colleagues to "stop for a cuppa"!


We are currently recruiting more teaching staff and will be able to share their biographies with you very soon - so please check back here!