Hellobee Boards

I have worked with children with behavioral struggles my whole career. I just have a couple of quick suggestions - make sure that the behaviors he gets rewarded for are really concrete - so have an inside voice during nap, make an appropriate choice of another activity if he doesn't want to nap, stay on his mat, etc., whatever an age-appropriate expectation is - not just "be good during nap" or something similar.

Also, it might be good to start with a daily smaller reward right after school. He might be too young to have the ability to think long-term for the whole week. And the benefit of that is that you can make a quicker connection to the behavior at school. Once you see that the daily ones are making a difference, you can bump it up to a somewhat bigger reward at the end of the week.

Also, how long is nap time? How long would he have to be quiet for or do something else? I only ask because I remember maybe hearing about some other families with a similar issue, but the thing was that nap time was like 2 hours. That's a really long time for a 3 year old to stay in one spot and be relatively quiet if they aren't sleeping!