11-Plus

11-Plus Preparation: GL Assessment vs CEM — Key Differences Explained

The two 11-plus formats test reasoning in different ways. Many parents don't realise their target grammar school uses a specific format until it's too late. Here's what to look for.

4 min read

A colourful row of lockers representing the 11-Plus category

Families preparing for the 11-plus often discover late that the exam is not one exam. Different grammar schools and consortia have used different assessment formats, and preparing for the wrong one wastes months of work.

The two broad approaches

Historically, 11-plus assessments have fallen into two camps. One approach uses clearly delineated papers with published question types, so families know in advance which categories of verbal and non-verbal reasoning will appear. Preparation can therefore be systematic.

The other approach deliberately blends question types within papers and varies the emphasis between sittings, with the stated aim of making the test harder to coach for and more reflective of underlying ability. Vocabulary tends to carry more weight, and timing is often tighter.

Why the difference matters for preparation

A format with published question types rewards systematic practice of each type.
A blended, less predictable format rewards broad reading, strong vocabulary and comfort with unfamiliar question shapes.
Timing strategies differ: one rewards steady pacing per section, the other rewards adaptability within a mixed paper.
A student drilled narrowly on one format can be genuinely disadvantaged by the other.

Before buying practice material, confirm directly with the school or consortium which assessment they use for the year your child will sit. Arrangements change, and second-hand information dates quickly.

Preparation that works for either

Some ground is common to both. Wide reading builds the vocabulary that every format tests, directly or indirectly. Mental arithmetic fluency helps under time pressure regardless of paper structure. And comfort with being timed — genuinely timed, not approximately — is worth building early, because it is the variable that most often separates practice performance from exam performance.

A note on pressure

The 11-plus arrives at an age when children vary enormously in maturity, and a result on a single morning reflects that as much as it reflects ability. Preparation that builds reading, reasoning and confidence has value whatever the outcome; preparation built purely around a test date often does not.