C.D.
I would have her practice Form Drawing this will give her control. She'll have to practice though. Look up form drawing in the waldorf school. It can do wonders. If you give it a try have her do it first with stick crayons and simply practice on large paper before moving on to pencil.
Another thing that will help with writing is if she would take up kniting and sewing. Kniting regularly creates balance in the brain. Also work on a balance beam, jumping rope, lots of play outdoors climbing, running etc. Having her recite a poem as she walks forward and then backwards, she can also do this while reciting her times tables. I know this may seem strange but it is a matter of direct body, brain connect. If kept up, this will do wonders.