Like your DD mine can have attention problems and impulsive behaviour. When she was in infants (and junoirs) this caused a lot of friendship issues, as she would be doing one task but constantly looking around to see what else was going on; the problem was the children she was supposed to be working with misinterpreted my DD body language and just assumed she was uninterested in them, hence she had problems with friendships. It wasn't that she didn't like them, but thats how it came across, at times she can still do this.
The attention problem caused DD problems with teachers as she progressed through primary, she would end up looking out the window etc and not focusing on the teacher, she was listening and normally surprised the teachers because when they asked her a question about the lesson she normally got it right. (when the teacher explained the lesson, DD would usually understand first time round, but as DD has short attention span, got very bored as teacher then explained it another 2 times).
When DD started at school, I really didn't have a clue about parents evening, and I've discovered that each teacher seems to have a different take on them. I only had one teacher who raised the issue of ADHD/ Dyspraxia, a lovely experienced teacher, she was brilliant with DD and brought on her reading etc tremendously, I think she could really see past the behaviour and see the potential in my DD. However, the help she could offer was limited as bear in mind she had 29 other children in her class, she did however lend me literature on the subject which I found very useful.
But, teachers are human and vary alot, I wish they were all like the lady above, but from my experience there are a variety of teaching styles. There was one teacher who had a real personality clash with my DD, there was no empathy between him and my DD, so that was a dreadful year, I think he just saw her as naughty. He just said she had to concentrate more, sit still, stop fiddling etc (ie all the behaviour problems were because she was just naughty and she should just buckle down, he just could not deal with the reason for her problems). However, younger DD had same teacher a few years later and loved him, but she is a very different personality.
Another of DDs teachers, very new to teaching, and still getting to grips with teaching. She may have had latest training at college, but when teaching a class of 30 children, anyone with issues that weren't easily addressed was to a great extent overlooked,( especially as she was also getting married that year and several of the mums felt she was getting very distracted by that!)
So, you can see from my experiences it depends on the teachers, and where their interest lies. At parents evening and talking to headmaster etc, I would sometimes casually mention ADHD or similar problems and see if they would pick it up in the conversation. Normally it was ignored, as it opens up a can of worms, and the school does not have the facilities/finance to deal with. If DD had been less bright, then she potentially could have been statemented, which would have brought financial help to the school.
I never wanted to permanently label DD, with a tag of ADHD. I also didn't want to go down any route which would potentially involve medication for the problem. So I never pushed too hard. Its a difficult choice to make.