Altrincham Grammar School for Girls: 11+ guide
Altrincham Grammar School for Girls (AGGS) is a leading Trafford girls’ grammar admitting via the area’s CEM-style consortium test, with strong results and high demand.
CEM
174
~7 applicants per place
1910
Exam format
Trafford consortium (CEM-style) entrance test across Maths, English and reasoning.
Subjects tested
Catchment & admissions
Trafford catchment priority with a shared consortium test.
Qualifying score & how hard it is
Standardised consortium pass mark set annually.
Preparation timeline
CEM-style breadth from Year 4–5 — vocabulary, mixed reasoning and timed practice.
Frequently asked questions
How is CEM different to GL?+
CEM-style tests tend to mix subjects within timed sections and lean heavily on vocabulary and comprehension, whereas GL uses clearly separated, format-predictable papers.
Figures here are indicative and for planning only — admissions arrangements change each year. Always confirm the latest details on Altrincham Grammar School for Girls’s official admissions page.
Is your child on track for Altrincham Grammar School for Girls?
Take the free 15-minute diagnostic for an age-standardised score and a clear gap analysis against grammar-school standards.