greenlotus, our ds is really strong in math and likes it, but was held back in math during early elementary due to his dysgraphia, and he was extremely frustrated by it. We let him work in Aleks at home, and we were ultimately able to use the work he did in Aleks to support our advocacy to subject accelerate him in math. One really nice thing about Aleks (for advocacy) is the report that shows what your student has mastered vs your specific state's grade-level math curriculum standards (it has this report for all 50 US states).
We let our ds work in it when he wanted to rather than make him work in it a certain amount of time every day, but how you handle after-schooling is really child dependent. You might also find that Aleks goes fast, especially if your dd is high ability in math. Our ds went through the elementary grade levels quickly, but he had the concepts mastered. The key with Aleks is it doesn't give a lot of repetition if a student doesn't need it, which worked well for our ds.
Best wishes,
polarbear
