Having gone to a parent info night on registration this evening, I now have a bit more info and am not sure that dd will want to do this concurrent math course option. Essentially, her middle school runs such that all core courses meet every other day. If you take Geometry & Algebra II, you'd wind up with two blocks of math, so you'd have math every day: Algebra on one day and Geometry on the other.
That is good, but b/c it eats up another block, you have to either drop your music class (dd is taking orchestra) or your one elective course. I don't want dd to stop playing an instrument or only play once every other week when she has a lesson and she probably won't want to drop the only elective course she has each semester. We'll see, but for now I think that she's going to register with the assumption that she is just going to take Geometry next year and Algebra II in 9th.
If the teachers feel strongly that she should be taking both, they'll approach us in March or April and we can discuss further then.