Should she report the behavior of the daycare teacher?

My fifteen year-old daughter is volunteering at the daycare center that cared for her the first five years of her life. She is required to volunteer forty hours a year for the community service requirement of her school. She really enjoys it, and says the kids like her better than anyone else in the room.

There is a “floating” teacher who we remember from when our son was in daycare. She was far from his favorite teacher. My daughter said that she saw the floater yelling at the kids. Two year-old kids.

No other teacher in the daycare center yells at the kids, as far as we know. There was a teacher who lost control of her kids because she expected too much of them, but the parents intervened, and she received some training and things got much better.

The question is: should my daughter report this? I will tell you her feelings on the subject later.