If your child is approaching the age of 12 or 13, you may have heard whispers of the “13+ exam.” For many parents, it can feel like a daunting, secretive process — but once you understand what it is and why it matters, it becomes much less mysterious.

What exactly is the 13+ exam?

The 13+ exam (also known as “Common Entrance”) is an assessment taken by students who are moving from prep school into senior school in the UK. Unlike the 11+ exam — which happens at the end of primary school — the 13+ is designed for children who enter secondary education a little later, usually in Year 9.

In short, it’s a gateway exam: it helps schools decide if a student is ready for the academic pace and environment of senior school.

When does it take place?

The exam is usually taken when pupils are 13 years old, typically in Year 8 (the final year of prep school). Most schools schedule it in the summer term, though some may have earlier or deferred sittings.

What does it involve?

The exam is broad and covers a range of subjects. The core areas almost always include:

English – reading comprehension, grammar, and essay writing.
Mathematics – problem-solving and number fluency.
Science – biology, chemistry, and physics basics.

Depending on the senior school, there may also be papers in:

History
Geography
Languages (Latin, French, Spanish, German, etc.)
Religious Studies

Each school chooses which papers it requires, so not every child will sit every subject.

How tough are the exams?

The 13+ exams can be challenging, but are ultimately designed to reflect what pupils have already been learning at prep school. It isn’t meant to spring surprises; rather, it checks that students have absorbed knowledge and developed key skills over the years.

Why do schools use 13+ exams?

Many independent senior schools (such as boarding schools or selective day schools) use the 13+ to maintain high academic standards. For parents, it ensures that your child is matched with a school where they’ll thrive both academically and socially.

How can parents help?

Stay Informed: Each senior school has its own requirements. Check their admissions page early.
Encourage Steady Prep: This is a long-term game. A little revision over time is better than a last-minute scramble.
Keep Balance in Mind: While academics matter, schools also look for well-rounded children who enjoy sport, music, art, or other activities.
Consider investing in a tutor: Tutoring services are often used simply to ensure a child meets the required pass mark in their weakest subject. However, effective tutoring can be thought of as weekly top-ups across the board to encourage productive studying habits, and reinforcing learning across the curriculum. Think about investing in a service early doors to give your child the confidence in their abilities, and to avoid surprises on results day!

Final thoughts

The 13+ exam can sound intimidating, but think of it as a stepping stone rather than a hurdle. With the right preparation — and an understanding of what it actually entails — both you and your child can approach it with confidence.

Uncovering the Mystery of the 13+ Exams: A Parent’s Guide