Students often ask what mark they need for a grade 4, a 7 or a 9. The honest answer is that there is no fixed mark, and understanding why helps you use grade boundaries well, especially when you mark your own practice papers.
What a grade boundary is
A grade boundary is the lowest mark on a paper that earns a particular grade. If the boundary for a grade 5 on a paper is set at a certain mark, every student who reaches that mark gets at least a 5 on that paper. Boundaries are set separately for each subject, each exam board and each tier, and for each exam series.
Why there is no fixed mark for a grade
Exam boards try to write papers of the same difficulty every year, but no two papers come out exactly alike. So the boundaries are set after the papers have been marked, using the marks students actually achieved along with other evidence. If a paper turned out harder, its boundaries are lower. If it turned out easier, they are higher. That way, a grade 4 represents the same standard of work from one year to the next, even when the raw mark needed for it moves.
For tiered subjects, such as Maths and the sciences, the Foundation and Higher papers have separate boundaries, because they cover different ranges of grades.
What the grades mean
In England, GCSEs are graded from 9, the highest, to 1. A grade 4 is called a standard pass and a grade 5 a strong pass. In Wales, WJEC GCSEs use letter grades from A* to G, and in Northern Ireland, CCEA GCSEs use letters from A* to G with an extra C* grade between B and C. Your school will tell you which apply to you.
When boundaries are published
Each exam board publishes the boundaries for the summer exams on results day, alongside the results themselves. Boundaries from earlier years stay available on each exam board's website, usually listed by subject and paper.
Using boundaries with past papers
Grade boundaries are most useful when you mark a practice paper:
- Find the boundaries for the same paper and year as the past paper you sat, from the same exam board.
- Read your mark as a rough grade, not a promise. Next year's boundaries could be higher or lower, so treat the result as a range.
- Look at where the marks went, not just the total. The topics where you dropped marks tell you far more than the grade does.
The past paper archive lists papers and mark schemes by board and subject, and GCSE past papers explains how to use them well.
Aim for marks, not a number
Because the boundaries move, chasing a target mark is less useful than collecting as many marks as you can, topic by topic. Every topic you secure raises your mark whatever the boundaries turn out to be.
Where DoRevision fits
DoRevision modules test you on one topic at a time and check each answer as you go, which is a quick way to secure the topics where you dropped marks. For example, Expand and Conquer covers expanding brackets in Maths, Whole Text Arguer helps you plan whole-text answers in English Literature, and Cell Explorer covers cell structure in Biology. For when your exams are, see GCSE exam dates.