Open to new patients - ADHD, autism and combined assessments
← All articles

Behaviour & development · 6 min read

Difficult behaviour in school-age children and ADHD

Most children are restless, distractible or impulsive some of the time. ADHD is different in degree and in consistency: the difficulties are present from early childhood, show up in more than one setting, and get in the way of learning, friendships or family life.

What ADHD actually looks like at school age

ADHD is described in three presentations: predominantly inattentive, predominantly hyperactive-impulsive, and combined. Inattentive children are often missed entirely because they are quiet - they daydream, lose equipment, start work late and hand in half-finished tasks. Hyperactive-impulsive children are noticed sooner because they interrupt, leave their seat and act before they think.

Teachers frequently describe a bright child who is underachieving. Parents describe homework that takes three hours, mornings that end in tears, and a child who can hyperfocus on something they love but cannot start anything they find dull.

Why it is more than 'naughtiness'

ADHD is a difference in the brain systems that manage attention, working memory, motivation and self-control. A child with ADHD usually knows the rule and still cannot apply it in the moment. Punishment alone therefore rarely changes the behaviour - it just damages the child's belief that they are a good person.

What helps before and alongside any diagnosis

  • Short, single-step instructions given face to face rather than called across a room.
  • Predictable routines with visual timetables for mornings, homework and bedtime.
  • Frequent, immediate praise for effort - far more effective than delayed rewards.
  • Movement breaks built into homework rather than offered as a reward for finishing.
  • Clear, calm, consistent consequences agreed in advance and applied without a lecture.

How an assessment works

A NICE-standard ADHD assessment gathers developmental history from you, standardised questionnaires from home and school, and direct clinical observation. It also looks carefully at the alternatives - sleep problems, anxiety, hearing difficulties, specific learning difficulties and autism can all produce the same classroom picture.

This article is general information and does not replace personal medical advice. To discuss your child, call 01926 624 235 or send us an enquiry.

Talk to us about your child

Tell us a little about your concerns and we'll advise on the right type of appointment - there's no obligation to book.

Open to new patientsUpdated March 2026

ADHD assessments, autism assessments and combined ASD/ADHD assessments are all currently bookable.

We usually reply by email within two working days.