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Evidence Guide
16 min read

Understanding Behaviour

Behaviour is information. This guide looks at what tends to sit underneath it — need, context, relationship, communication, learning — and how to respond in a way that is both understanding and clear.

Reading time
16 min read
Age range
All primary (EYFS–KS2)
Evidence level
Moderate
A quiet primary classroom carpet area with cushions and a low bookshelf in soft daylight.
MoreFor teachers

Start with the pattern, not the incident

One incident tells you very little. Ten incidents with the same shape tell you almost everything. The most useful classroom question is when this happens: which lesson, which part of the lesson, which task type, which grouping, which adult, which time of day, and what happened immediately before.

  • Always at the start of independent writing? Look at task demand and the way in.
  • Always after lunch? Look at the playground, the queue, and the transition back in.
  • Always when the teaching assistant is elsewhere? Look at what support is doing.
  • Always in the last ten minutes? Look at fatigue, and at what is being asked then.
  • Only with one adult? That is information about the relationship, not a criticism.
  • Everywhere, all day, for months? Escalate — this needs more than classroom adjustment.
Antecedent beats consequence

Recording what happened before a difficulty changes practice far more reliably than recording how often it happened.

OverviewFor teachers

What behaviour often means in class

"This is too hard and I would rather look naughty than stupid"

Avoidance at the start of a task, silliness during independent work, lost equipment. Check task pitch and the entry point before anything else.

"I did not understand what you asked"

Multi-step instructions, unfamiliar vocabulary, and long verbal explanations produce apparent non-compliance in children with language or working memory difficulties.

"I cannot manage this environment"

Noise, crowding, unpredictability, waiting. Often clearest in the hall, at wet play, in corridors and at changeover.

"I need to be in control of something"

Refusal of small requests, particularly from children whose lives feel unpredictable. Offering a genuine choice within the expectation often resolves it.

"I want to be with people"

Calling out, clowning, disrupting. Connection-seeking is easily misread as attention-seeking; the difference matters for how you respond.

"Something happened before this lesson"

The most common cause and the least visible one. Two minutes of asking usually beats twenty minutes of sanctions.

And sometimes it is ordinary

Children test boundaries, get silly with their friends, and make poor choices. Not every behaviour needs a deep explanation. Consistent, low-key, unembarrassing correction is the right response to most of it.

MoreFor teachers

Prevention: what the evidence points to

EEF behaviour guidance emphasises knowing pupils and their influences, teaching routines explicitly rather than assuming them, and using consistent, low-key responses — with targeted approaches for the small number of children who need more. The SEND guidance report adds that high-quality teaching is the first response to additional need, not an alternative to it.

Teach the routine, do not just state it

Model, practise, review, re-teach after holidays. Most 'behaviour' in primary classrooms is an unrehearsed routine.

Design out the flashpoints

Entry tasks, staged tidy-up, defined lining-up order, resources already out, a clear first step on every task.

Make the way in obvious

Worked example, sentence stem, partner talk before writing. Avoidance thrives on blank starts.

Reduce incidental load

Shorter instructions, one step at a time, visual support, less copying. Frees capacity for the actual learning.

Deliberate relationship-building

Greeting at the door, brief non-task conversation, noticing effort. Cheap, and consistently identified as foundational in both EEF and NICE guidance.

Consistency across adults

Children escalate where the rules differ by adult. Agree the response with your teaching assistant and cover staff.

MoreFor teachers

Responding in the moment

  • Quiet, brief, close, and as private as the room allows.
  • Name what you want, not what you want stopped.
  • Take-up time — say it, then step away rather than standing over them.
  • Offer a real choice within the expectation, not an ultimatum.
  • Do not chase the last word; the audience is the reason it escalates.
  • Follow through calmly on what you said, later if necessary.
  • Repair before the end of the day, always.
Repair is not weakness

A brief, warm reset after a difficult moment is what stops one incident becoming an identity. It costs thirty seconds and prevents weeks of trouble.

Practical ideasFor teachers

Things to avoid

  • Public sanctions that humiliate — shame reliably produces more of what you are trying to reduce.
  • Escalating consequences within a single incident.
  • Whole-class punishment for one child's behaviour.
  • Reasoning at length with an overwhelmed child.
  • Removing the activity that regulates them — outdoor time, the club, the responsibility.
  • Assuming it is deliberate, or personal.
  • Carrying a pattern alone for a term before mentioning it.
MoreFor teachers

Working with families

Parents of children whose behaviour is difficult at school often expect to be criticised, and arrive defended. Opening with what the child is like at their best, then describing a specific pattern and asking what they see at home, changes the conversation more than any technique.

Where a family reports a very different child at home, both accounts are usually true. Say so — it removes the blame from the room and usually produces the information you need.

ResearchFor teachers

Evidence & sources

What this guide is, and is not

Understanding why a child behaves as they do does not mean removing expectations. This guide is about looking for what is underneath behaviour while still holding clear, kind boundaries — both, not one instead of the other. It is educational, not clinical, and it cannot tell you the cause of any individual child's behaviour.

  1. Department for EducationProfessional guidance
    Behaviour in schools: advice for headteachers and school staff (2024)

    The current DfE frame: clear routines and consistently applied expectations, alongside reasonable adjustments for pupils with SEND and consideration of whether unmet needs are driving behaviour.

  2. Department for EducationStatutory guidance
    SEND Code of Practice: 0 to 25 years (2015)

    States that behaviour is not itself a category of special educational need — where a child's behaviour is a concern, an underlying need should be looked for.

  3. Department for EducationProfessional guidance
    Mental health and behaviour in schools (2018)

    Non-statutory advice on recognising when behaviour reflects an underlying mental health or SEMH need, and where school support ends.

  4. Education Endowment FoundationResearch summary
    Improving Behaviour in Schools — guidance report (2019, updated 2021)

    Six recommendations, including knowing pupils and their influences, teaching routines explicitly, and using targeted approaches for the small number who need them.

  5. Education Endowment FoundationResearch summary
    Behaviour interventions — Teaching and Learning Toolkit

    Rated by the EEF as moderate impact for very low cost, on extensive evidence — with a strong caution that effects vary widely and depend on implementation.

  6. Education Endowment FoundationResearch summary
    Special Educational Needs in Mainstream Schools — guidance report (2020, updated 2021)

    Sets out the 'five-a-day' teaching approaches and argues that high-quality teaching for all is the first response to additional need, including SEMH need.

  7. Education Endowment FoundationResearch summary
    Improving Social and Emotional Learning in Primary Schools — guidance report (2019, updated 2021)

    Explicit teaching of social and emotional skills, reinforced across the day, is where much of the classroom behaviour evidence and the SEMH evidence overlap.

  8. Education Endowment FoundationResearch summary
    Putting Evidence to Work: A School's Guide to Implementation (2019, updated 2024)

    Why behaviour approaches most often fail: adopted broadly, delivered thinly, never reviewed.

  9. National Institute for Health and Care ExcellenceProfessional guidance
    Social, emotional and mental wellbeing in primary and secondary education (NG223) (2022)

    Whole-school approach, trusted relationships, and targeted support — the wellbeing counterpart to the behaviour guidance.

  10. Department for EducationStatutory guidance
    Keeping children safe in education

    A change in behaviour can be an indicator of a safeguarding concern. Any behaviour discussion must sit inside this duty.

  11. Anna FreudProfessional guidance
    Mentally Healthy Schools

    Quality-assured UK material on the relationship between behaviour, emotional need and school practice.

Supporting Families
Looking for a parent-friendly version of Understanding Behaviour?

The Kind Learner Space has this guide in plain English for families — the same evidence, translated for home.

Open in The Kind Learner Space
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Where to go next.

A calm handful of next steps — not a checklist. Follow whichever thread is most useful right now.

For families

Share this at home.

A plain-English version parents and carers can read at home — same evidence, warmer language.

Same category

More in Social, Emotional & Mental Health.

Emotional wellbeing, relationships, regulation, anxiety, trauma and belonging.

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