Sonia began her career as a music teacher and held several leadership posts in schools, and subsequently a series of professorships in education. Sonia founded the Achievement for All charity in 2011, committed to enabling all children and young people to progress regardless of background, challenge or need.

Clare is head teacher at the Federation of Belle Vue Infant and Newport Junior Schools in Hampshire.  In 2015 her school won a Pupil Premium Award in the Infant and Key Stage 3 category. Clare began her teaching career in Inner London and she has taught for 27 years, with 15 years as a head teacher.

Sir John is chair of Whole Education and of the charity WorldWide Volunteering. He was National Pupil Premium Champion from 2013 to 2015 and is a former secondary head and general secretary of the Association of School and College Leaders.

David is the founder and Principal of the East London Science School, which opened in September 2013. David has campaigned for the teaching of physics, chemistry and biology for all pupils as separate disciplines. David has contributed to the development of the new science National Curriculum and is a leading member of the Knowledge Network. He is also a director of the Physics Factory, a charity working to enhance the delivery of physics in London’s schools.

Jude has recently retired as head teacher at Queensmill School, which won the Special Schools and Alternative Provision category in the 2015 Pupil Premium Awards. Jude trained and qualified as a teacher of children with special needs and has been head teacher of four special schools. Her last school, Queensmill in Hammersmith and Fulham, caters for children and young people with autism from the ages of 2 – 19 and was judged as ‘outstanding’ in the last three Ofsted inspections.

Andreas Schleicher is Director for Education and Skills, and Special Advisor on Education Policy to the Secretary-General at the Organisation for Economic Co-operation and Development (OECD) in Paris. In addition to policy and country reviews, the work of the Directorate includes the Programme for International Student Assessment (PISA), the OECD Teaching and Learning International Survey (TALIS) and the development and analysis of benchmarks on the performance of education systems (INES). A key member of the OECD Senior Management team, Andreas promotes the work of the Directorate on a global stage and fosters co-operation both within and outside the OECD.