World Class Arena is an international initiative designed to identify and assess gifted and talented students around the world. It was devised by the British government Department for Education and Skills (DfES), and World Class Arena items have been trialed by teachers and students in the UK, Australia, New Zealand and the US.

At the heart of World Class Arena are World Class Tests in mathematics and problem solving aimed at upper primary and lower secondary. It also offers classroom support materials and research. As World Class Arena continues to grow and evolve, it will offer more resources for everyone involved in gifted and talented education.

Since November 2004 World Class Arena materials have been published by GL Assessment. GL Assessment will continue the work, begun by the Qualifications and Curriculum Authority (QCA), of publishing the teaching, learning and assessment materials which have been developed by the Assessment and Evaluation Unit (AEU) at the University of Leeds and the Mathematics Assessment Resource Service (MARS) at the Universities of Nottingham and Durham