I have tried conferencing with the teacher to no avail, and after talking to other parents with similar concerns, I approached the principal, who has been of no help. Do you have any suggestions for me regarding getting my daughter out of this situation beyond what I have already tried? Any advice is greatly appreciated.
I do not know how you approached the teacher or the principal, but I suggest a very personal appeal. Since your daughter was new to the school, the teacher had little time to learn how best to work with her. Perhaps a good start is to have another meeting where you can describe the environment your daughter works best. Confrontation seems to be the teacher's style, but may not be your child's.
Ask your daughter what kind of support she wants from you. Often, children and adults just need to vent. It is very healthy to even describe a problem to be more intense than it is. That does not mean she is telling a story. It means she is releasing pent up anxiety. Fear that you may take over the problem (and in her eyes make it worse) adds even more anxiety. Discuss together your strategies to deal with her teacher.