Hi Kellie,
Two things to look into: 1) the amount of time your daughter spends watching TV or playing electronic games and 2) whether or not your daughter has food sensitivities.
Here's my story:
My 8 year old daughter had a similar problem with focusing. It's not that she she couldn't do her homework (and penmanship was her least favorite thing to do), it was that she couldn't concentrate and didn't want to. And she constantly whined that her homework was either so hard she was confused or that it was so easy it was boring.
Her teacher said she was easily distracted in class; not really present. She mentioned that this could be the result of watching TV and playing electronic games. She recommended books on tape/cd as a way of engaging her. My daughter now loves books on tape/cd and her reading has improved tremendously. We like to follow the book during the narration.
I also had her tested for food sensitivities this summer (a simple blood test ordered by my naturopathic doctor). She came up highly sensitive to all dairy, eggs and moderately sensitive to wheat, rye (not other glutinous grains) and almonds. So I eliminated all those items from her diet (that's another story in itself).
When school started this fall her teacher said she was present, focused and not easily distracted (she has the same teacher as last year because she goes to a small public charter school with a combined 2-3 classroom). She attributed the change to the reduction in exposure to electronic media/TV and perhaps some to maturation. She didn't think the food sensitivity issue was too important.
After 10 weeks of a total elimination diet I began testing my daughter with foods one by one starting with those she was least sensitive to. Almonds seemed to be fine so I now include those in her diet on an occasional basis. Clarified butter (no milk proteins, just the fat) also seemed to be fine. When I tested her with wheat she got sick and for several weeks her teacher said she was unfocused and easily distracted. Now, after a month of no wheat she is back to being focused and attentive. And the teacher is now convinced that food sensitivities are important. We'll try again from time to time because food sensitivities do change but right now the dramatic improvement in her behavior and attitude is worth the hassle of a wheat-free, dairy-free and egg-free diet.
So you might look into both exposure to electronic media and food sensitivities. It would be a terrible thing for your daughter to be labeled as lazy or worse, and for her to take those labels to heart, when, in fact, her behavior issues could be resolved by a reduction in watching TV or a change in diet. Good luck!