The most arresting education statistic to come out of Scotland in 2025 was this: 43% of the school population — 299,445 children and young people — are now identified as having additional support needs. In 2010, the figure was 10%. In 2015, it was 22.5%. The trajectory is not a gentle rise. It is a transformation in what Scottish schools understand themselves to be doing and who they understand themselves to be doing it for.
The scale of the question is not unique to Scotland. England's SEN figures have climbed steadily — over 1.6 million pupils now have identified special educational needs, roughly 17% of the school population, and the trend is upward. The recording methodologies differ, but the underlying tension is the same: does identifying more needs mean meeting more needs, or documenting more unmet need?
The number has produced two dominant reactions, both inadequate. The first is alarm: 43% cannot possibly be right; the definition has been stretched to meaninglessness; the system is pathologising normality; we need to concentrate resources on the genuinely needy rather than spreading them across nearly half the school population. The second is affirmation: identification is a good thing; these needs were always there but were previously invisible; wider recognition means wider support; and any attempt to narrow the definition risks returning children to a world where their needs were ignored.
There is something true in both reactions. The difficulty — and the opportunity — lies in holding them together, because the 43% figure is simultaneously a measurement artefact and a description of reality, and schools that respond to it effectively will need to understand both.
Why the number is so high
The explanation begins with the legal definition. Under the Education (Additional Support for Learning) (Scotland) Act 2004, an additional support need applies to any child or young person who, for whatever reason, requires additional support in order to benefit from school education. The phrasing is deliberately broad. Unlike the Special Educational Needs (SEN) framework used in England and Wales — where roughly 20% of pupils are identified — Scotland's ASN definition encompasses not only diagnosed conditions and disabilities but also circumstances: being bereaved, being bullied, being a young carer, having English as an additional language, experiencing family disruption, having a parent with mental health difficulties. The breadth of the definition is a policy choice. It reflects the GIRFEC (Getting It Right for Every Child) philosophy that support should be available to any child who needs it, without requiring a formal diagnosis as a gateway.
This means that the 43% figure includes children with profoundly different levels of need existing under the same statistical umbrella. A pupil with complex autism and communication difficulties, a pupil who arrived from Syria two years ago and is still acquiring English, a pupil whose parent died last year, and a pupil who has been identified as exceptionally able and requires extension — all are counted in the same figure. The inclusiveness of the definition is, in one sense, a strength: it recognises that barriers to learning come from many sources, not only from diagnosed conditions. But it also means that the headline figure tells you very little about the composition of need within any given school, and almost nothing about the level of resource required to meet it.
The ASN percentage isn't the only education statistic that obscures more than it reveals — the instruments we use to measure the attainment gap have similar problems.
The regional variation reinforces this point. ASN identification rates vary significantly between local authorities — and the variation does not map neatly onto deprivation. Some of the highest identification rates are in relatively affluent areas, which suggests that the number reflects not only the prevalence of need but also the capacity and inclination of schools to identify and record it. The NIF improvement plan acknowledges this directly: the proportion of pupils with ASN in the most deprived areas is almost double that in the least deprived — but the overall identification rate is influenced by differences in recording practice as much as by differences in actual need.
Why the number is also real
The temptation to dismiss the 43% figure as definitional inflation should be resisted, because the needs it captures are genuine even when they are heterogeneous. The Scottish Children's Services Coalition's analysis of the data is sobering. Pupils with recorded ASN are less likely to achieve positive attainment outcomes: in 2021/22, only 41.5% of school leavers with ASN achieved SCQF Level 6 or 7, compared to 73.3% of leavers without. They are less likely to reach a positive destination: 93.4% against 97.3%. They are more likely to be excluded and more likely to have poor attendance. These are not marginal differences. They describe a population of nearly 300,000 young people whose educational outcomes are measurably and consistently worse than their peers'.
The growth in the number also reflects something real about what has happened to childhood and to schools since 2010. The period has seen austerity, the pandemic, a cost-of-living crisis, rising levels of child poverty, an increase in diagnosed neurodevelopmental conditions, and a well-documented deterioration in children and young people's mental health. Schools have not invented these pressures. They have absorbed them, because schools are the one universal institution that sees every child, every day, and is expected to respond to whatever those children bring through the door. The 43% figure is, in part, a measure of how much more schools are being asked to hold.
Janie McManus, the former chief inspector of education, put it clearly in her 2026 report: the needs once considered 'additional' are now a routine part of classroom life. This is not a complaint about definitional stretch. It is a description of what it is like to teach in a Scottish school in 2026 — where the range of need in any given classroom is broader, more complex, and more demanding than it was a decade ago, regardless of whether the formal category of ASN captures it accurately.
What the number demands
Here is where the conversation that Scotland needs to have gets difficult, because the 43% figure creates a paradox. If 43% of your school population has additional support needs, then additional support is not additional — it is the norm. And if it is the norm, then the systems, structures, and resources designed to provide additional support to a minority of pupils are being asked to serve a purpose they were never designed for.
The most immediate pressure is on resource. Over the last decade, spending per pupil on ASN support has declined by almost a third in real terms, and specialist ASN teacher numbers have been cut by 240 across Scotland. At the same time, the number of pupils requiring support has roughly doubled. The arithmetic is unforgiving: more need, less resource, and a legal framework — the presumption of mainstreaming — that requires most of these pupils to be educated in mainstream classrooms. The gap between what pupils are entitled to and what they actually receive is the central finding of every review of ASN in Scotland for the last five years, from the Morgan review in 2020 to the Children's Commissioner's analysis in 2023 to the McManus report in 2026.
But the resource question, important as it is, is not the only question. There is also a data and systems question that receives far less attention. If 43% of your pupils have identified needs — needs that range from short-term circumstantial barriers to long-term complex conditions — then you need to know, at any given point, who those pupils are, what their needs are, what support is in place, whether the support is being delivered, and whether it is making a difference. This is an information challenge as much as a resource challenge, and most schools are not equipped for it.
The ASN figure exposes a structural problem: support for these young people is split across a pastoral-academic divide that treats learning and wellbeing as separate functions.
The Coordinated Support Plan (CSP) — the statutory mechanism for pupils with the most complex needs — applies to remarkably few pupils. Only 1,401 across Scotland had a CSP in the most recent data, which is 0.2% of the total pupil population. For the vast majority of the 43%, support is managed through non-statutory plans — Individualised Educational Programmes, Child's Plans, pastoral records — that vary enormously in format, detail, and rigour between and even within local authorities. The information about what support a pupil is receiving and whether it is working is often held by individual members of staff rather than recorded in a system that allows the school to see the picture across its entire ASN population.
This matters because a school cannot allocate finite support resource effectively if it does not know — systematically, not anecdotally — which pupils are progressing and which are not, which interventions are producing results and which are not, and where the gaps between need and provision are widest. When ASN was 10% of the school population, it was possible — just — to hold this information in people's heads, to rely on the pastoral team's knowledge of individual cases. At 43%, that is no longer viable. The scale demands systems: systems for tracking, for monitoring, for connecting the ASN register to attendance data, attainment data, behaviour data, and observation evidence in order to understand whether the support in place is supporting.
Beyond the number
The ASN review that the Scottish Government has committed to commencing in 2026 will need to grapple with the definitional question — whether a category that includes 43% of the school population is still doing useful analytical work. But the more important question is practical rather than taxonomic. Whatever the definition settles on, schools will still contain the same pupils, with the same needs, in the same classrooms. The question is whether those schools have the information, the systems, and the capacity to respond.
The 43% figure is not a scandal. It is not a sign that Scotland has lost its mind. It is a measure — imperfect, debatable, but not meaningless — of the breadth of need that Scottish schools now serve. And it is a reminder that the infrastructure schools need to serve those needs well is not primarily a matter of more staff, more money, or more specialist provision, though all of those things matter. It is a matter of visibility: of knowing, for each young person, what is happening and whether what the school is doing is working. At 43%, that is not a question any school can answer by instinct alone.
If you're pulling observation evidence alongside pastoral and attainment data, Learning Lens captures the classroom observation evidence that can sit alongside pastoral and attainment conversations — book a conversation from the home page.
References
Children and Young People's Commissioner Scotland (2023). Additional Support for Learning in Scotland. Edinburgh: CYPCS.
Education (Additional Support for Learning) (Scotland) Act 2004.
McManus, J. (2026). Report on Additional Support Needs. Commissioned by the Scottish Government.
Scottish Children's Services Coalition (2025). Additional Support Needs: Briefing. Edinburgh: SCSC.
Scottish Government (2025). Pupils in Scotland Census 2025. Edinburgh: Scottish Government.
Scottish Government (2025). National Improvement Framework 2026: Improvement Plan. Edinburgh: Scottish Government.
Jamie Scobie writes from extensive experience in Scottish secondary education, including pastoral care, data for improvement, and school self-evaluation. This blog is an independent publication: he writes in a personal capacity as the creator of Learning Lens, writing about classroom observation, teaching evidence, and education policy. He speaks here only for himself and for Learning Lens, not for any employer or other organisation. He holds an MSt from Cambridge (Distinction) and a Masters from Stirling.