Quoting you...One of the concerns I was trying to explain to her school was I felt like coming at a vast array of concrete representations of the same idea again and again and again was confusing her (ie "Didn't we just do this? So this must be new... So there must be some trick here... Ummm....")....

When I read this, I just thought that perhaps a video would help if this is her thought process. All kids know a video is the same thing again and again, right?

My son (first grade) has learned a lot over the last two years using the Mathtacular series of videos, and he still has a lot more to learn from them. I like to watch them, too. They do little skits that are silly, but get the word across. (Much less dry than Khan Academy, imo.)

(He's in the 99th percentile for the nation in math according to the MAP testing this fall. I think videos help tremendously. Especially for a visual learner.)