"Is this actually going to help, or is it just an expensive way to keep them occupied for six weeks?" That is the honest question behind most summer school bookings, and it deserves an honest answer rather than a sales pitch.
The good news: there is a real evidence base on this, not just marketing claims about the "summer slide." The Education Endowment Foundation (EEF), the UK's leading authority on what actually moves the needle in education, has reviewed dozens of summer school studies and reached a specific, useful conclusion: summer school works, but only when it is built a particular way. Get the format wrong, and the evidence says it barely helps at all.
The EEF's Teaching and Learning Toolkit rates summer schools as delivering an average of three additional months of progress compared with pupils who do not attend, based on a review of 69 studies. That headline figure hides the part that actually matters for a parent deciding whether to book: the outcome depends heavily on how the programme is run.
Programmes built around small-group or one-to-one academic teaching, in core subjects like maths and English, deliver the strongest results, with the EEF's evidence pointing to gains of four to five months of additional progress. General or light-touch summer schools, by contrast, such as those built mainly around reading lists or loosely structured activity days, show a much smaller average impact of around two months. The EEF's own summary is direct about this gap: academic structure and small class sizes are what separate a summer school that works from one that does not.
There is a second honest caveat worth knowing before you book anything. The EEF also flags that, for the purpose of school-level Pupil Premium spending, summer schools are relatively expensive per pupil compared with some other interventions, and evidence security across the underlying studies is rated low rather than high. That caveat is aimed at how state schools allocate limited catch-up budgets, not at whether a well-structured, small-group programme benefits an individual child. But it is a useful reality check against any claim that summer school is automatically worth the cost, whatever the format.
The evidence identifies a second, more practical problem: pupils who sign up do not always show up consistently. In EEF-evaluated trials, attendance and dropout were repeatedly the biggest barrier to a programme delivering its potential impact, with one trial recording fewer than half the target number of pupils attending regularly.
This matters more than it might seem. A programme that is well-designed on paper but attended patchily will underperform the headline figures above, because the "small group, academic focus" benefit only accrues to children who are actually in the room for it. Before booking, it is worth asking three practical questions: is the location realistic for daily attendance without a long commute mid-holiday, is the schedule short and focused enough that a family will actually see it through, and is there a real academic component, or is "summer school" being used loosely to describe a holiday club.
Measured against that evidence bar, the structural choices behind Merit Tutors' own summer school programme line up with what the research says works rather than what it says does not. The format is built around small-group teaching in the two subjects the EEF's evidence specifically credits with driving academic gains, maths and English, delivered daily across a focused summer block at East London branches in Forest Gate, Ilford, and Plaistow, rather than as an occasional drop-in activity.
That does not mean every child needs the same dose. A Year 6 pupil preparing for the jump to secondary school, a KS2 pupil who has drifted on times tables or reading fluency over the term, and a GCSE-track student who wants a head start on the next academic year all get value from a different intensity of summer input. Families weighing this up alongside broader KS2 tuition support or 11+ preparation can use the same evidence lens: consistent, small-group, subject-focused attention beats occasional or generic sessions, in summer or during term time.
Not every family needs, or wants, a structured academic programme every summer. If your child has had a genuinely demanding academic year and the priority is rest, routine, and low-pressure engagement rather than formal catch-up, that is also a reasonable choice, and one the evidence above does not argue against. For ideas on striking that balance without slipping into six weeks of screens, see our guide to keeping children engaged over the summer holidays, which covers lower-pressure, at-home approaches rather than a structured programme. The two are not competing options; they suit different goals and different children in different years.
Does summer school actually stop the "summer slide"?
The evidence suggests a well-structured, academically focused summer school does reduce learning loss over the holidays, with EEF-reviewed studies showing an average of three months of additional progress compared with non-attendees, rising to four to five months for small-group academic formats specifically.
How many weeks of summer school make a difference?
Most of the programmes in the EEF's evidence base ran for two to four weeks of consistent, structured teaching. Very short or irregular attendance reduces the benefit, since the research is clear that attendance itself, not just enrolment, is what drives results.
Is summer school worth it for a younger child, or only for exam years?
The evidence does not point to one age group benefiting more than another; the deciding factor is the format, not the age. A KS1 or KS2 child in a small, academically focused group can see comparable relative gains to an older student, provided the sessions are consistent rather than occasional.
Is a general holiday club the same thing as academic summer school?
No. The EEF's research specifically separates light-touch or enrichment-only provision, which showed roughly two months of additional progress, from academically structured, small-group teaching, which showed four to five months. The label "summer school" alone does not guarantee the stronger outcome; the structure behind it does.
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Updated 18-September-2026
