but that was taken away from him tomorrow because he took another kids hat a recess so he could play in the son as he had left his at home
Hate me if you will but the above looks like bullying and schools rightly take a very dim view of it. I think that they are entirely justified in punishing your son in whatever way they feel will best get the message across that bullying is not acceptable.
In terms of the decline in behaviour over the past two weeks, a lot of kids especially very young ones get stir crazy towards the end of the year. It could also be that he is about to hit a growth spurt or reach another developmental milestone as acting up is quite common during these times.
Getting back to the skip - if the Iowa Acceleration Scale says skip, that is, he has the 'points' based on IQ and achievement etc even without the school's support points then you should push it with the school/school district, IMO.
