An interesting post here about teacher bullying. Although I would caution parents to not overreact - no parent wants to hear it but your child does lie, every child does - it's good to be aware that this does happen. I've seen it happen. Especially considering the environment in which teachers work now - they are under so much pressure and are not treated well - I think it's easy for teachers to take out their frustration on the kids in their class. I've definitely seen it happen. But make sure you as a parent get the whole story. Observe the classroom - you'll be able to tell a lot about how a teacher treats students, even if it's a little different when you're there.
Three years ago: Notes from Subbing in Kindergarten