It is a great shame many of the poster's comments regarding the problems this little girl is having, with concentration, behaviour and completing her school work, have been overshadowed by criticising her mother's obvious frustration over a lost cardigan, in a previous thread.
I vaguely remember that thread. She didn't come across so terribly then, I thought, either. Extremely frustrated over a whole series of items her child had lost, yes. Powerless to retrieve them, without any support from a teacher, compounded by the fact she did not get to pick her child up very often, yes. Personally, she just seemed at the end of her tether - and having experienced school staff being spectacularly unhelpful, at times, myself, I am not surprised. Thankfully, I am not one to lose my cool, generally.
It can be stressful, especially if a child is somewhat disorganised and a school does not in any way support the development of organisation skills. I have noticed, on here and in real life, the end of a school day can often be chaotic and poorly supervised. Coming out at at inconsistent times. The majority of children having no bags ready, having to go back for items several times. No teachers to be seen or lower down the school correct handovers to a parent failing. In this context, retrieving lost property can be a nightmare, as parents cannot enter a school building without permission / finding a member of staff to accompany them. And even when things are named they do not get handed back to a child but end up in a lost property 'black hole' at various changing locations within a school.
So yes, I've still sympathy for this mother. But regardless of any sympathy or lack of it, held over mother's frustration over lost property, this should not greatly affect the consideration of whether a teacher's withdrawal of the whole of Golden Time / Breaktime, for a 5 year old child, who did not complete her school work, is warranted or beneficial.
Focussing on the child, instead of the parent, for a minute, it is apparent that she has had difficulties with concentration, controlling her impulsive behaviour and has found the noisy classroom environment 'stressful'. I would have thought this would have been particularly relevant contextual information, however posters who are teachers on this thread seemed to want to minimise this particular contextual information. I wonder why, we could guess....