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Charlie Gilderdale


Secondary Coordinator
of the NRICH Project

E-mail Address


+ 44 (01223) 764246


  • MA (Cantab)
  • PGCE in Secondary Mathematics (Cantab)

Membership of Professional Bodies/Associations

  • The Association of Teachers of Mathematics
  • The Mathematical Association

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I was an undergraduate at the the University of Cambridge and then completed a PGCE in Secondary Mathematics before becoming a mathematics teacher and then Head of the Mathematics Department at a secondary school in Cambridgeshire.

I have worked at the University for the last 25 years, first training secondary mathematics teachers at the Faculty of Education, and now as a member of the Millennium Mathematics Project working for the NRICH Project, where I have focussed on problem solving and on creating opportunities for students to learn mathematics through exploration and discussion.

I am responsible for developing resources for secondary students that aim to enrich their experience of mathematics and challenge them to think mathematically.

I also develop "rich tasks” and resources for secondary teachers that are linked to the secondary school curriculum.

To support teachers I have published a collection of articles on rich mathematical tasks and how they can be used in the classroom.

I continue to work in secondary schools with students and mathematics teachers.

I have run Professional Development courses for teachers in the UK and abroad (India, UAE, Pakistan, Sri Lanka, Vietnam, Hong Kong, Malaysia, South Africa, Egypt, Spain, Chile, Argentina).

I have supported and contributed to the work of various organisations, including the National Academy for Gifted and Talented Youth, the Qualifications and Curriculum Authority, The Royal Institution, Cambridge Assessment, UKMT, Cambridge International Examinations, The Prince's Teaching Institute, HeyMath!, The Association of Teachers of Mathematics and The Mathematical Association.

Academic Area/Links

Science, Technology and Mathematics  Education

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Research Topics

Current Research Projects

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Selected Publications

Together with colleagues I have published resources on the NRICH website for both students and teachers. Here are some of the key resources that I have been involved in creating:

A collection of "rich tasks" and resources linked to the secondary school curriculum:

A collection of activities designed to develop students’ capacity to work as mathematicians:

A collection of articles for secondary teachers on enriching the secondary curriculum:

A collection of articles for teachers on mathematical pedagogy:

A collection of articles about teachers' experiences of using NRICH as part of the Engaging Mathematics for all Learners Project:

Gilderdale, C. (2007) Generating Curiosity in Mathematics Learning, Council of Boards of School Education in India conference: Addressing Core Issues in Science and Mathematics

Gilderdale, C. (2005) Aprendizaje Colaborativo en el Contexto de Matematicas e Internet: La Esencia Interactiva in Usos Matematicos de Internet, Spanish Ministry of Education

Back J., Gilderdale C. and Piggott J. (2004) Exploring the challenge of online mediation, Proceedings of the 28th Conference of the International Group for the Psychology of Mathematics Education.

Gilderdale C., Hughes S. and Piggott J. (2003) Assessing Promising Mathematicians Using On-screen Technologies, Conference Proceedings CAL '03 '21st Century Learning'