T.
Hello T....
Just thought that I would drop you a few lines of advice about childcare situations such as this. I have been a teacher in preschool and daycare settings for almost six years now, I have an 18-month-old son and I have picked him up from his sitter and she did not know what happened either. I said that to say this...I believe that I am one of the best teachers/caregivers that there are and I cannot honestly tell you that I knew how every incident happened because the children are so quick and even though you watch them with "eyes behind your back" you still can't catch it all. I understand what you are facing but please just forgive them, talk with them honestly about how you feel and if it should happen again then I would advise you to take your daughter out and find somewhere that has a lower teacher/child ratio.
Hope this advice helped..God Bless You!