KS4 is the term for the two years of school education which incorporate GCSEs, and other examinations, in maintained schools in England normally known as Year 10 and Year 11, when pupils are aged between 14 and 16 years. Key stage 4 is a vital time for students as they focus on the practical side of mathematics. It tests the ability of a candidate to apply core mathematical concepts to solve mathematical problems derived from everyday lives.
Recently a new grading system has been introduced where 9 is the highest grade, while 1 is the lowest (not including a U which is ‘ungraded’).
Key areas of study include: number, algebra, ratio, proportion and rates of change, geometry, statistics and general problem solving.