Three-year-old asking to go to the bathroom WAY too many times at school and during meal times

Hi all. So, my daughter turned three four months ago, and they've been very difficult months behaviorally-speaking, mostly because she's determined to be as autonomous and independent as possible (for example, she had two brief melt-downs this morning, first because I wouldn't let her wear a sun-dress in 50-degree weather and secondly because I put the sun-dress back on the hanger - she wanted to hang it up herself). This has affected her potty habits in two opposite ways:Starting a few months ago, it got extremely hard to get her to take a bathroom break, especially when she's happily playing (she'd been out of diapers and pull-ups since about 2.5). I had to physically place and hold her on the seat many times, because she would have accidents if allowed to choose when to go. One particularly bad accident happened at preschool, where she peed in the hallway on the way to the restroom and wouldn't let her teacher put a pull-up on (I had forgotten to pack a change that day). Luckily, this happened five minutes before pick-up - I had to carry her to the car wrapped in a blanket.That may have contributed to a trend her teacher has noticed these past few weeks: she asks to go way, way, way too many times. Today, it was 12 times in six hours, including 5 times while her class was in the gym. At home, her habits are pretty normal...except when she wants a "get out of dinner free card" - half the time, she sits down for about ten seconds without doing anything, then announces that she's done. It's like she's realized that no adult wants to tell her she can't go potty, and uses that as an escape from activities she's not crazy about. I also think she likes the school bathroom a lot, since everything is child-sized and accessible, and her teachers let her do it by herself, which is so important to her right now.I don't think it's a medical issue, since she only does it some of the time. I'm looking for a strategy that I can submit to her teacher to limit unnecessary and disruptive breaks. Thanks.Bonus question: how to combat the tyranny of a child who wants to fight about the details of every single task all day? I'm getting very frustrated. via /r/Parenting http://ift.tt/2fJlHAn