Yes, we are homeschooling. Here are few more details. Pre-Algebra was easy for them so we changed curriculum companies for Algebra. When I compared the Beg. and Int. Algebra (Lial) it seemed that everything in Beg. was covered in Int., so we tried to do that first, based on how quickly they picked up Pre-Algebra.
It usually really is better to spend a little extra time making sure you understand everything well, before moving on.
After finding that Intermediate Algebra was Algebra II, I was surprised how well the boys were doing, esp. with the applications. So far, they have shown understanding and are approaching mastery (understanding, accuracy, and speed).
If your daughters are truly understanding the material in the Intermediate Algebra then it may be just fine to continue.
My concern is the scope and sequence of Beginning Algebra (Algebra I). Without going through every objective, is there anything in Beginning Algebra that is not covered in Intermediate Algebra?
If so, we will stick with Int. If we stall out, my plan is to go back to Beg. Alg to slow the pace. And, of course, to ask a local teacher/tutor her advice.
Thank you for your feedback! It is VERY helpful!