Our local high school also has kids take regular Bio or regular chem, then AP bio or AP chem. I don't understand that either.
If you know what schools she wants to go to and can get into, then that is good. If a kid wants Duke or a really top school, they are kind of forced to take a million AP courses and not do the fun extra-curricular activities that don't "get you anywhere." I don't agree with all of that but that is what has happened to college applications. It has gotten super competitive to get into a good college.