Some of the students who need the most support are not the ones who draw your attention.
They are often the ones who appear to be coping.
They follow instructions. They sit quietly. They may even achieve well in certain areas. From the outside, there is little to suggest anything is significantly wrong.
And yet, something does not quite add up.
You may notice that their effort seems unusually high for the outcome they produce. Or that their engagement comes and goes in ways that are difficult to predict.
At times, they seem to manage well. At other times, they appear overwhelmed or withdrawn.
There may also be a sense that they are holding things together during the school day, only to struggle more once the demands increase or change.
These are often the students who leave teachers uncertain.
They are not clearly struggling. But they are not consistently thriving either.
This is often where masking becomes relevant.

Masking refers to the ways some students manage to hide, compensate for, or work around their difficulties in order to meet expectations.
In the context of ADHD, this can mean a student is exerting considerable effort to appear organised, attentive, or in control, even when this does not come naturally to them.
This effort is not always visible.
A student may watch others closely and copy what they do. They may rely on memory rather than organisation. They may push themselves to maintain focus for short periods, then struggle to sustain it over time.
Some students are also supported by strengths in other areas.
For example, a student who is academically capable may be able to compensate for attention difficulties in the early years.
Another may rely on strong verbal skills to navigate situations where sustained focus is more challenging.
In other cases, masking can sit alongside anxiety, where the student works hard to avoid making mistakes or drawing attention to themselves.
What this often means in practice is that the underlying difficulty is present, but not immediately visible.
In the classroom, masking does not present as a clear or consistent pattern.
Instead, it often appears as a series of small inconsistencies that are easy to attribute to other factors.
You may notice a student who:
At other times, you may observe:
There are also students who appear highly capable, yet describe school as more difficult than expected.
They may express frustration quietly, or become increasingly disengaged over time.
What can make this particularly challenging is that these students often do not fit the more familiar picture of ADHD.
They are not disruptive. They are not obviously struggling to manage behaviour.
As a result, their difficulties may be attributed to personality, motivation, or confidence, rather than considered in a broader context.
Many teachers encounter students whose ability appears to compensate for their difficulties.
A student may demonstrate strong verbal reasoning, creativity, or problem-solving skills while simultaneously struggling with attention, organisation, or task completion.
Because academic performance remains relatively strong, underlying difficulties can be overlooked.
This is sometimes described as twice-exceptionality, where high ability and ADHD exist together.
In classrooms, these students often create uncertainty.
Their strengths are highly visible, while the effort required to maintain performance may remain largely hidden.
Teachers may notice a mismatch between what the student clearly understands and what they consistently produce.
The challenge is not always capability.
Sometimes it is the amount of effort required to sustain performance over time.
Many students work hard to avoid mistakes, drawing attention, or appearing unprepared.
For some, anxiety can create a pattern of over-preparation, perfectionism, or constant checking that partially compensates for attention difficulties.
From a teacher’s perspective, these students may appear highly conscientious.
Yet beneath the surface, considerable effort may be going into managing organisation, attention, and task demands.
This can make ADHD more difficult to recognise.
Rather than appearing distracted, the student may appear highly focused, while experiencing significant internal pressure to maintain that appearance.
Teachers are not expected to determine whether anxiety, ADHD, or another factor is contributing.
However, recognising that multiple influences may coexist can help explain patterns that do not fit a simple explanation.
Some students present with characteristics that may be associated with both ADHD and autism spectrum disorder (ASD).
Teachers may observe difficulties with attention alongside challenges in social communication, flexibility, sensory experiences, or managing change.
Because these patterns can overlap, classroom presentations are not always straightforward.
At times, attention difficulties may be the most noticeable feature.
At other times, social or sensory challenges may become more prominent.
This complexity is one reason diagnosis remains a clinical process rather than an educational one.
For teachers, the important consideration is not determining which explanation is correct.
It is recognising that a student’s experience may involve multiple interacting influences.
Teachers occasionally encounter students whose attention, emotional responses, or engagement fluctuate significantly across situations.
Experiences of stress or trauma can sometimes influence how students respond to classroom demands, relationships, and learning environments.
Some behaviours associated with trauma may appear similar to behaviours commonly associated with ADHD.
For this reason, understanding a student’s presentation is rarely as simple as matching behaviour to a single explanation.
What teachers observe is often the result of several interacting influences rather than one isolated factor.
Recognising this complexity supports a more balanced interpretation of classroom behaviour and learning patterns.
When masking is not recognised, students can go unsupported for extended periods of time.
Because they appear to be coping, their difficulties may not be explored further. Expectations remain the same, even as the effort required to meet them continues to increase.
Over time, this can have an impact.
Students may begin to experience ongoing frustration, particularly when their performance does not reflect the effort they are putting in. They may feel that they are falling short, without fully understanding why.
In some cases, this can affect confidence and engagement with learning.
From a teacher’s perspective, masking can also create uncertainty.
You may feel that something is not quite right, but without clear indicators, it can be difficult to know how to interpret what you are seeing.
This is not uncommon.
Many teacher training pathways focus on more visible presentations of difficulty, which can leave these quieter patterns less well understood.
Recognising that ADHD can present in this way provides a broader framework.
It allows you to consider that a student who appears to be coping may still be managing significant underlying challenges.
In practice, masking often becomes more noticeable over time, particularly as classroom demands increase.
A student may manage well in the early years, where tasks are shorter and more guided. As expectations shift toward greater independence, organisation, and sustained effort, the gap may begin to widen.
You might see a student who keeps up during lessons, but struggles to complete work independently. Another may rely on last-minute effort to meet deadlines, creating the impression of inconsistency.
There are also students who appear calm in class, but experience significant fatigue or emotional strain by the end of the day.
In some cases, difficulties become more visible during transitions, assessments, or periods of increased workload.
What is often consistent is the underlying effort required to maintain the appearance of coping.
While this effort may not be immediately visible, it can be considerable.
As you reflect on these patterns, a number of points may help guide your thinking.
ADHD does not always present in obvious or disruptive ways. Some students develop ways of managing that reduce visibility, but not the underlying difficulty.
Apparent capability does not always reflect ease. A student who is achieving may still be working harder than expected to maintain that level.
Patterns over time are often more informative than isolated observations. Small inconsistencies, when repeated, can point to something more significant.
Masking can become more difficult to sustain as demands increase.
What appears manageable in one stage of schooling may become more challenging in the next.
It is also worth recognising that many teachers feel uncertain when encountering these students. This reflects the subtlety of the presentation rather than any lack of professional awareness.
Your role remains important.
You are in a position to notice when effort and outcome do not align, and when a student’s experience of learning does not match what is visible on the surface.
You are not expected to determine the cause.
But recognising that there may be more beneath the surface is often the first step toward a more accurate understanding.
Masking can make ADHD more difficult to recognise, particularly in capable or quieter students.
Understanding this pattern more clearly can help explain why some students seem to cope, yet continue to struggle over time.
This topic is explored in more depth — with practical classroom strategies — in Module 5 of our ADHD Training for Teachers course.
Yes, and this is one of the most common reasons masking goes unrecognised. Academic achievement can coexist with significant underlying difficulty. A capable student may be compensating through extra effort, strong verbal skills, or close observation of others — producing results that appear adequate while the demands on them are considerably higher than they look. Achievement is not evidence that a student is coping without difficulty.
A well-behaved student who is genuinely settled will typically show consistency across different contexts and demands. A student who is masking often shows a more uneven picture — managing well in structured or supported moments, then struggling when independence, sustained effort, or increased workload is required. The effort required to maintain the appearance of coping is the key distinction, even if that effort is not immediately visible.
Masking often becomes harder to sustain when demands increase. Common transition points include moving from primary to secondary school, the introduction of more independent project work, exam periods, or any significant change in routine. What appeared manageable under one set of conditions may become noticeably more difficult when the level of structure reduces or the workload grows. These moments of breakdown are often when ADHD first comes to attention in students who have previously appeared to be coping.
Dr Geoff Kewley is a Consultant Paediatrician and co-founder of ADHD Lifespan with more than 40 years' experience supporting children and young people with ADHD. He chaired the Professional ADHD Group within the Royal College of Paediatrics and Child Health and is the author of several ADHD books, including Attention Deficit Hyperactivity Disorder: What Can Teachers Do?, and co-author of 100 Ideas for Supporting Pupils with ADHD.
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