berries, I really agree with your message - if the teacher feels it's not a good idea for me to be on trips with my son, she should talk to me about it, so I don't feel I am being left out of the equation - exactly!
Mind you, I know I might be jumping to the wrong conclusion, as it could just have been a numbers thing. I am sure she is under pressure, and she is very young, so I'll let the 'cut your working hours' comment pass for now.
I won't make more of this until I have volunteered for the next trip this term. If I am refused again for no good reason, I will take this further. I will definitely consider going to the head and asking if (spaces permitting) I can go on the next few class trips to help ds settle and possibly talking about guidelines for parent helpers, too.
Anyway, holding back in RL doesn't mean I can't chewing things over on mumsnet! I do feel annoyed about it. When I turned up in the morning to ask the teacher if I could come on the park trip, several parents said "hello, nice to see you, I'm sure we can fit one more in" it was a bit embarassing to be told within their earshot that I couldn't attend! And I do really get a strong sense that this teacher doesn't want me around. Full stop.
In the evening, when I asked my son about the trip, he said he was in a group with two other boys (one of them special needs) and the special needs helper took them round, not one of the parents. He said it was very boring. I know my son gets bored and distracted at school, so this is a problem, but he is not special needs AFAIK (and I have asked). If I had been there, looking after my son, at least the special needs boy would have had more attention from his helper.
There is another reason I want to give ds more attention at school - my oldest son has had lots of attention this year. He is doing really well at school, the teachers are very pleased with his progress, he passed the 11+, he passed his grade 1 music exam with a high mark, he won a writing competition with a local paper, he took a leading part in the school play and was again praised for this. He has had coaching for his exams, me giving him lots of one to one attention for his exam preparation, and well, ds 2 is just an attention grabbing sort of boy He is also 5 years older than ds2. I think my younger son just feels it's not worth competing with him, so keeps a low profile at school. I just think I need to boost ds2 a bit, make him feel his school life is just as important to me and to his teacher. I think this is what I will tell the head if I decide to see him.