Evemom is right--if you had another adult available to take data, you would definitely be counting prompts. Unless the teacher wants to keep an index card in her pocket and tally for a few days, this data probably can't be had. (We have also sent an outside psych into school to take data.)
The teacher's energy will be limited--you can ask for a day or two of data, but I would want the energy going into rewarding the right behaviors to increase their frequency. Not a reward so large that it will upset your DD if she doesn't get it, just a mildly pleasurable perk.
DeeDee
