I am a teacher too - and have been in the game a long time. Personally, I wouldn't choose soft drink as a reward - maybe a game at the end of the day. Like a previous poster has said - she may be a younger teacher, who knows. I guess I'm just defensive of teachers and get tired of people jumping up and down when there are much better ways to go about things then flying off the handle. We're all on the same side, and have our students'/ your child's best interests at heart. Sure we may make decisions sometimes that in hindsight are not the best, but that's something for the teacher to reflect on and change for the next time. Not to get jumped on and judged by a heap of adults.
People aren't quick to judge doctors and lawyers etc like they do teachers. Just gets me frustrated.