+1

My DS (grade 2) also struggles with sitting still and quiet - it doesn't seem to be something he can easily control - yet. (He's not the only one in his class, so I think some of it is age-appropriate behaviour)

We've worked with him and his teachers on strategies (allowing him to go to the hall when he needs to move around; using noise-cancelling headphones) and this has generally helped. I don't think 'consequences' would have helped. Sticker charts - useless with my kids!