Oh my, brings back memories.
You know our daughter was pretty advanced at everything she ever did. Walked unassisted at 6 months. Spoke in full sentences at a year. Early reader.. blah, blah, blah..
But she would not for the life of me, she would not potty train.. It just was not happening. She would not even consider it until she was almost 4!
We had little neighbors potty trained at right after 1 year old.. so to see them for all of those years, potty trained freaked me out.
Finally one day our daughter showed some interest on her own and i jumped on it. She was fully potty trained in just a few days.
Fully potty trained meant, me not asking her if she needed to potty (she would go on her own or ask me to go with her), no accidents (none), at night or through the day.. It just clicked for her.
And so maybe your child is not fully potty trained yet. There is nothing wrong with this, it has just not clicked.
How to help her? Try to get to know what her potty schedule is.
Examples... In the morning when she wakes up..
after she eats breakfast and then will need to go 10 minutes later?
Maybe once she has been in the car and arrives at school she needs to go..
Maybe right before lunch,
maybe right after lunch,
maybe 10 minutes after lunch..
This is something You will need to help figure out. Then you will need to remind her. "Good morning..Be sure to go to the potty. "
"That was a good breakfast, you want to try to go to the potty before we leave for school?'
'We are here at school, do you need to go to the potty before you go into class?"
If at home and when she is with you, you are reminding her, then you will need her teachers at school to do the same thing..
If the potty trained class teachers do not do this, then your daughter is not ready for this class yet. Not a big deal, it is just that your daughter is not physically able yet to know when she needs to go. She knows when she begins to eliminate, but not the sensation right before..
Always follow your child's actual needs.