A rough expectation by age
| Age | Approximate span | In practice |
|---|---|---|
| 3 | 6-9 minutes | One activity, then a change is needed |
| 4 | 8-12 minutes | A short table activity can be finished |
| 5 | 10-15 minutes | A whole story can be listened to |
| 7 | 14-21 minutes | One homework block, then a break |
| 10 | 20-30 minutes | Half a lesson |
| 12 | 24-36 minutes | A lesson, with a break |
Why hours on a game but five minutes on homework
Attention isn't one capacity. Interest-driven attention and effortful, sustained attention work differently. A loved game supplies instant feedback, a clear goal and continuous stimulation; homework supplies none of the three. So focusing for a long time on a game doesn't prove that the difficulty with homework is simply unwillingness.
Arrangements that make focus easier
- Break work into blocks: one age-appropriate block, then a short, physical break. Long sitting lowers output.
- Make the task visible: writing down what needs doing removes the load of holding it in mind.
- Simplify the space: only what's needed on the desk, screens out of sight.
- Make starting easy: putting the shortest task first, not the hardest, gets things moving.
- Don't treat movement as the enemy: some children focus better standing or rocking.
When ADHD is considered
What matters in an ADHD assessment isn't a single observation but that symptoms appear in more than one setting, clearly exceed what the age would predict, last longer than six months and impair daily functioning at school, in friendships and at home. Insufficient sleep, anxiety, hearing problems and learning difficulties can produce a similar picture, so assessment covers those too.
Common questions
Do screens shorten attention span?
There are studies showing an association, but causation isn't settled — children whose attention is already shorter may be drawn to screens more. A safer reading: what screens displace (sleep, movement, shared play) matters for attention, so the thing to look at isn't total minutes but what they replaced.
Should I sit with my child during homework?
At first yes, but the aim is gradual withdrawal. A workable shape: start together, stay nearby but occupied once they're into the task, and look at it together at the end.
Does sugar affect attention?
The idea that sugar causes hyperactivity in children hasn't held up in controlled studies. Meal timing does matter, though: long gaps without eating and starting the day without breakfast have measurable effects on attention.
Do attention training programmes work?
Evidence that commercial brain-training transfers to everyday life is weak. Better-supported routes appear to be sleep, regular physical activity, breaking work into blocks and arranging the environment.