GL-style and CEM-style NVR test the same visual reasoning skills. The difference parents notice is format and predictability — how the questions are packaged, how much the layout changes from year to year, and how you should practise — not a different set of underlying abilities. If you already know your target schools use GL or CEM, this guide explains what that means for non-verbal reasoning specifically. For the full exam-format comparison, see GL vs CEM 11+.
The real difference: format, not skill
Non-verbal reasoning asks a child to find a rule in shapes, then apply it. That is true whether the paper is a GL Assessment booklet or a CEM-style mixed paper. A child who can spot rotation, reflection, shading cycles and two rules at once will score on both. What changes is how familiar the page looks on the day, how much time they have, and whether they can adapt when the layout is not one they have drilled.
That is why two families can both be “doing NVR” and still prepare differently. GL-style practice rewards mastering recurring question families. CEM-style practice rewards the same skills, plus the habit of reading a new visual instruction quickly and switching into a maths section without losing pace.
GL-style vs CEM-style NVR
| GL style | CEM style | |
|---|---|---|
| Question families | Often uses clearly recognisable types that appear year after year. | Aims to make formats less predictable, so children cannot rely on a memorised layout. |
| Typical NVR types | Sequences, matrices, analogies, odd-one-out, rotations and reflections — see the 9 NVR question types. | May introduce unfamiliar visual rules that must be understood quickly, alongside sequences, matrices and analogies. |
| How it is sat | Typically paper-based and multiple-choice, although the exact local test varies. | Grammar CEM papers are usually mixed (maths + NVR). Current Cambridge Select Insight entrance assessments are computer-based. |
| Practice materials | Official GL familiarisation and a large commercial practice bank (Bond, CGP and others). | Cambridge does not publish commercial practice papers; candidates receive familiarisation material. Third-party CEM-style papers exist but vary in quality. |
| Preparation focus | Master recurring question types until the method is automatic, then build speed. | Flexible reasoning — adapting to new instructions, switching sections, and applying several rules at once. |
| Where it sits in the exam | Often a dedicated NVR paper (when the school tests NVR at all). | Usually short NVR sections inside a maths and reasoning paper, with their own time limits. |
What both styles actually test
Strip away the booklet design and both styles assess the same core skills:
- Identifying patterns — what changes from one figure to the next, and what stays the same.
- Rotation and reflection — turning a shape, flipping it, and not confusing the two.
- Shape transformations — size, shading, number of sides, added or removed parts.
- Spatial awareness — holding a figure in mind while comparing options.
- Applying several rules at once — a matrix that has one rule across the row and another down the column.
That overlap is useful. A child preparing for Buckinghamshire (GL, NVR tested) is not wasting time if they later sit a CEM paper in Birmingham or Warwickshire. The methods transfer. What they must add for CEM is mixed-paper timing and comfort with an unfamiliar layout.
GL-style NVR in practice
- Types are grouped and labelled in familiar families
- A typical GL NVR paper is about 80 questions in 40 minutes
- Children can learn a checklist (shape, colour, size, number, rotation, position, layering)
- Wrong answers are often a rotation when the rule was a reflection
CEM-style NVR in practice
- NVR arrives in short bursts between maths questions
- Section time cannot be borrowed from the next block
- The first 10 seconds are for reading the new visual rule, not guessing
- Breadth beats drilling one workbook style
Cambridge Select Insight and CEM branding
CEM (the Centre for Evaluation and Monitoring) designed the mixed-paper 11+ used in several grammar consortia. That product line now sits with Cambridge. Cambridge Select Insight is the current computer-based entrance assessment used by some schools. It is not a paper GL lookalike: children work on screen, question formats can feel less familiar, and Cambridge does not sell a commercial pack of past papers. Registered candidates are given familiarisation material instead.
If your school names Select Insight, treat on-screen familiarisation as part of preparation — clicking, timing and reading instructions on a device — not only paper NVR books. If your school still describes a CEM grammar consortium paper (for example Birmingham or Warwickshire), prepare for mixed paper sections rather than assuming a computer test. Always check the school’s current admissions page; providers and delivery methods do change.
Where NVR is tested — and where it is not
Format only matters if NVR is on the paper. It is not universal.
- Kent Test (GL) — English, maths and verbal reasoning. NVR is not tested.
- Buckinghamshire (GL) — all four subjects, including a dedicated NVR paper.
- Birmingham (CEM) and Warwickshire (CEM) — NVR sits in Paper 2 with maths.
- Trafford (CEM) — CEM format but no NVR; Paper 2 is mathematics only.
If Kent or Trafford is the only target, you can deprioritise NVR. If the list includes Bucks, Birmingham or Warwickshire, NVR needs a regular slot in the week.
How to prepare for each style
If the school uses GL-style NVR
Work through the recognisable families in order: sequences, matrices, analogies, odd one out, then rotations and reflections. Use a consistent scan so your child does not lock onto the first property they notice. Timed GL-style papers come last, once the methods are fluent — a 40-minute paper at 30 seconds a question punishes hesitation more than it punishes a missing “trick”.
Official GL familiarisation papers are worth sitting so the answer-sheet layout is not a surprise. Commercial books map closely onto the real families, which is why GL NVR is efficient to practise.
If the school uses CEM-style NVR
Keep practising the same visual skills — they still appear — but do not stop at one publisher’s layout. Mix in papers where NVR is interrupted by maths, and train the habit of stopping when a section ends. When a new visual rule appears, the winning move is to name the rule in a few words (“each shape gains a stripe and rotates 90°”) before looking at the options.
Do not expect a full commercial CEM NVR series in the way GL has Bond and CGP. Use familiarisation material from the provider, then build flexibility with varied figures rather than repeating the same five page designs.
Practise NVR on KidSmart
Adaptive non-verbal reasoning, including matrices, sequences and spatial items, so children build the shared skills both formats use. Pair this with the NVR question-type guide and a free trial.
Frequently asked questions about GL vs CEM NVR
Is CEM NVR harder than GL NVR?
They are hard in different ways. GL NVR is hard because of volume and pace on a familiar paper. CEM-style NVR is hard because the layout can be less predictable and the section is often short, timed, and sandwiched between maths. The shapes themselves are not a different subject.
Should we use GL NVR books for a CEM school?
Yes as a skills base — sequences, matrices and rotations still matter. Then add mixed, timed practice so your child is not thrown when NVR is not a standalone 40-minute paper. GL books alone are not a complete CEM plan.
Does the Kent Test include non-verbal reasoning?
No. The Kent Test is GL-style English, maths and verbal reasoning. NVR is not on that paper. Buckinghamshire GL does include NVR, so check each target school rather than assuming “GL means NVR”.
What is Cambridge Select Insight?
It is Cambridge’s current computer-based entrance assessment, in the CEM family of products. Schools that use it provide familiarisation material; Cambridge does not sell commercial practice papers. Confirm on the school site whether you are sitting Select Insight on screen or a consortium CEM paper on paper.
Can one child prepare for both GL and CEM NVR?
Yes. Build the shared skills first, then practise in both wrappers: a dedicated timed NVR paper for GL, and short NVR sections inside a mixed paper for CEM. See the 11+ preparation strategy for how to phase that work.