It’s surprisingly difficult to prove one of the most basic properties of a number: whether it can be written as a fraction. A broad new method can help settle this ancient question. In June 1978, the ...

As thousands of Year 11 students across the UK tackle their mock exams, one thing has teachers and parents equally stumped: the rise of the so-called “impossible” GCSE maths question. Lindsey Wright, ...

This week, teenagers across the UK have been sitting their GCSE exams in a range of subjects, including maths. However, one particular GCSE calculation, dubbed 'impossible', has left even parents ...

As thousands of Year 11 pupils throughout the UK grapple with their mock examinations, one phenomenon has left teachers and parents equally baffled: the emergence of the seemingly "impossible" GCSE ...