Hope the parents take two weeks off care and spend the time training and the child comes back knowing what they are supposed to do and then you just have to watch the clock and remember to put them on the potty regularly.

The other method is to not start too early in care or you just waste a lot of time in the bathroom. I do ask parents to start on weekends so the child gets some "training" sessions in. When they are begining to get the hang of it then I start it in daycare. Mostly I find if a child can stay dry for naptime they are ready for daytime training and holding it.

I just put them on the potty at what would be our normal changing times with a few more tossed in so we "try" before snack, before going downstairs to the other playroom, when we come up, ....which turns out to be about every 1 1/2 hours. Eventually they learn to hold it till the next scheduled time. I find this works better than them asking since most don't want to leave play so say nothing and it prevents that run every 20 min to piddle. Important to learn to hold it all for the time.