I just noticed this question...we have speed issues with our ds on certain things. Mainly math fact stuff, and frankly so far we haven't found a whole lot of help for this *yet*, but I am hopeful as I consider more his personal learning style and other factors.
Is your dd in 1st? Giving 6 year olds an hour long (or 45 minute long) test seems a bit odd. Even in 3rd my ds tests appear to be around 20 minutes, based on what he brings home. In first I would not imagine a test lasting more than 10 minutes. What are they trying to test? How many questions are on these tests??
I could definitely see my ds getting completely lost in his own thoughts during a test that long, unless it was really interesting and had tons of questions. If he had two or three of these a week...hm.
Might it be possible that she is finishing ahead and going back to recheck? Has the teacher actually observed that she is sitting on page 2 of a 4 page test when the other kids are wrapping up? (and the other two pages are blank?)
When you study with her, do you feel she is responding in an fairly quick manner, or do you notice some lag in responding?
Good luck, hopefully others can chime in with actual ideas to help
