Do you mean to recognize the teacher and your little girl, or are there more than one teacher in the class.
If it is your little girl that you are wanting to recogniz as well, you could write, "(her name) and her (grade) class want to thank (teachers name) for being a GREAT teacher. "
I think it would be a good idea to recognize the whole class, just in case they are jealous of her....Hope this helps!!!!
Kara S
Missouri