Dear parent
Since when is it happening with your child?
Is it suddenly happened that he stopped writing in school? Or it has happened slowly.
A lot of things depends on this.
If it has happened suddenly, it might be a behavioural change and to be dealt accordingly.
Or it's been a while that he is not able to pay attention?
Class room has a lot of distractions. May be because of that the child is not able to attend.
Next Steps
1.Try to see if there is something that happened at school? Talk to the teacher about it.
2. Try to observe if in other areas also that child is facing difficulties to pay attention?
it's better you get your child's evaluation.
-Test of attention and concentration
-Intelligence
and few others , the Psychologist will do it.
Health Tips
Do not worry.
it can be managed.
Do not scold your child for not doing it and ask the teachers also to not scold the child.