Motor planning and binder backpack manipulation.
My son in middle school had to carry a three ring white 3" binder. Every bit of school paper had to be organized in it. It had to be cared in a mesh backpack. I went to the pediatrician and got a prescription orders for "more supportive backpack than a limp mesh backpack due to hypotonia dx". Actually the ped would have written it for every single kid who goes to that school because this backpacks are not good for ANY kid's back. He got to use the good backpack. So the three inch binder....we had the "great binder disaster of 2011". Where he kept dropping the damn thing (remember he has low tone) and all the contents would go all over the place...and the last straw was when he dropped it on the way home...in the rain and everything was ruined. (Remember it was three inches so it didn't fit in the backpack with everything else). I finally got one that was about 2.5" with a zipper that closed it around the edges and a strp for core his shoulder and a handle. I told them to deal with the zippy noise. It was too much for him to carry the white one. And even the most strict of them all backed down because I was completely over the whole binder thing. I personally prefer the each class has a color folder with pockets and space in the center with the clips. Then you keep each folder I the backpack. You can keep an extra on with extra paper and a place for random flyers coming home to parent. But nope...the whole school had to use their system.
Okay...so all that to say that my son had binder problems due to both hypotonia (commonly co-morbid with Asperger's) and motor planning and also due to materials not being a good match to his conditions. Can't fix the hypotonia but I could fix the materials. Didn't cost them anything but agreeing to be flexible.