Mean Girl?

It is funny that I was just thinking about nasty comments form my daughter's classmates....
and saw this this  post on my reader.
My 7 year old girl has to face many situations at school where other girls will say mean things to her. and as mother sometimes I feel I am not to guiding her right. Like yesterday, some girl was teasing her (you are looser and will always be looser because my daughter’s favorite food was favored by only two other kids in class). My response to my daughter was ‘ignore the other girl’.
When I think back, I was that kind girl who did not know how to respond in language so I took shelter with books. I am always looking for advise/input in terms of how to manage this….
Books are fine and I am so grateful to this to a extent when I see my paycheck....
But I wish I could enjoy more of my time at school (and hope my daughter does)