I cannot compare the two programs for you as I've never used GwG, however, I wanted to commiserate with you a bit. I too wanted ALL of my kids using the SAME materials (on their own levels, of course), but I have finally let go and it is so much better. :lol: Between all the kids we use: Abeka math, Saxon math, Ace math, FLL 1 + 2, Rod and Staff English, Writing Tales, Writing With Ease, Classical Writing, RS4K, Apologia Elem Science....let go, friend! :001_smile: