Like any profession, some of them deserve it and some don't - however, in the current economic climate, it is moraly wrong to expect tax payers to stump up extra when they themselves are struggling. They need to get real and be grateful they have a job, as far as I know, the starting salary is a lot higher than that.
I think that if there is any increase, it should be performance related and parents should have a say in the performance score that the teacher gets. My second son has the same teacher that my 1st son had last year - she was crap then and is crap still. They were the only class who didn't go anywhere on a trip the whole year - not even a walk to the park - and she has regurgitated the whole of last years lessons and topics this year. I got so fed up with it, I sent in my first sons topic file as evidence of homework done for my second son and she didn't bat an eyelid, I spend more time teaching him myself than she does.
So, does she deserve 10% when I count myself lucky to be getting 1.5% despite my company doing well this year - I don't think so.