I suggest you to talk to other parents from your child's class and ask them about how their kids feels about this teacher, if it not only happening with your child, it seems that the teacher doesn't have any patience with kids. The teacher might tell you that she doesn't scream but why is your daughter doesn't like her, there is a reason, some teachers won't admitt what they do, others do, anyway, teachers are there to help and teach kids. Talk to the principal and see what she says, if nothing resolves, then suggest to change your daughter to another classroom.

I asked her about her teacher and she does not like her. she say's that she yells at the students about any little thing especially if they don't understand something. I did have a talk with her teacher but she says she don't yell. I feel like speaking with the principal and having my daughter moved.

Kids that are not used to yelling or loud talking as some might say are not able to concentrate out of fear that they may be yelled at. I talk loud so to my kids they actually have to ask if I am mad or not because I am just loud. I have three boys and so far as I can see only one of my kids is like me loud, we talk loud, we have a loud laugh, its funny when me and my son laugh my husband get all embarressed he is quiet. Talk to your daughter ask her if she is happy in there kids like to know that they to have choices, does you school have class mixing. my son has math mixing this is to benefit both students and teachers, the students that are below grade level are in one class and the ones that are proficient or at grade level, then there is the advanced level are in another class. which is good because my kid is proficient so when he needs help he says he feels okay to ask for help. hope this helps

I suggest to transfer her to a different classroom, it seems that your daughter is kind of scare of her teacher, this might make it difficult for her to ask if she couldn't understand something, also you should schedule a conference with her teacher first and find out what is is really going, what it is the problem before changing her teacher, ask your daughter about her teacher, how she feels about having that teacher, if she is scare of her or what really bothers from her teacher, anything to help your daughter to keep on learning.