What do you do about behavior issues away from you?

Maybe the sticker isn't concrete enough (for her or for STAS?)AS is having similar behavior issues at school lately and his teacher has a tool in place b/c she sees this kind of thing A LOT.She uses a small sheet of paper (like maybe a quarter or half a regular sheet) and prints out a chart on them that has the day's "schedule" of activities. For each activity, there is a picture and the word so the kids can learn to read, etc. too. After each section of the day, the teacher takes a second to put a sticker on the chart if the kid did well. If he didn't, no sticker.At the end of the day, they take a minute and go over the chart, the teacher reinforces any times when the kid did great (like sharing a toy or helping a friend), and talks about why there's no sticker on a certain activity (well, remember you punched your friend at lunchtime? that wasn't a good choice, was it? Let's try again tomorrow).AS is trying hard to get all 8 stickers on his chart, b/c if he does, he gets an extra for his shirt.So his chart is something like:Circle timeOutside timeSnackReadingLunchCenters (indoor play)Circle time(He's in preschool, so I'm sure kindy has a different schedule, but you get the idea.)So far, it's working. He does ask what if he doesn't get any stickers one day. I don't see that happening. The teacher also suggested doing something similar at home, and trying to have a regular routine at home to help reinforce it. I am trying to come up with our biggest trouble spots here at home to put on the chart (like getting dressed the first time I ask, washing hands WITH SOAP, clean-up time, story time (he likes to be silly and interrupt), bed time, etc.)I think it's worth a try. DS "can't remember" why he misses out on a sticker here and there, but he can see the chart and see where one is missing and that will help him "remember" a bit better than just "I got a sticker today, don't know why...."