Resurrecting this old thread because I was interested in this topic myself. I found this article which may be helpful in this discussion. It was posted by Art Reed on his www.teachingsaxon.com website. He's a Saxon (and math) expert, so his advice is likely very sound. https://teachingsaxon.com/2022-newsletters/december-2022/

Thank you very much, LostintheCosmos! Glad to hear this testimony.

(ooops! I posted this in the High School section and then realized that it actually belongs here instead. My bad.) Hello, Everyone! My son is on track to finish Math Mammoth Level 7 in a few months, so my wife and I are trying to decide on which program to use for Algebra 1. He's doing well in Math Mammoth 7 (and is a good math student in general), so our assumption is that he'll be ready for Algebra 1. We are considering Dolciani's Algebra 1 (we own the 1987 edition), but are unsure about whether there might be gaps between Math Mammoth 7 and Dolciani Algebra 1 since it is an older book/model of teaching. From my understanding, Dolciani, like Math Mammoth, is a mastery-based approach rather than spiral, so they do have that in common. I'd love to hear from any of you who've gone this route. How did it go? Any gaps? Any supplementation needed between MM7 and Dolciani? Thank you! James

Hello, Everyone! My son is on track to finish Math Mammoth Level 7 in a few months, so my wife and I are trying to decide on which program to use for Algebra 1. He's doing well in Math Mammoth 7 (and is a good math student in general), so my assumption is that he'll be ready for Algebra 1. We are considering Dolciani's Algebra 1 (we own the 1987 edition), but are unsure about whether there might be gaps between Math Mammoth 7 and Dolciani Algebra 1 since it is an older book/model of teaching. From my understanding, Dolciani, like Math Mammoth, is a mastery-based approach rather than spiral so they do have that in common. I'd love to hear from any of you who've gone this route. How did it go? Any gaps? Any supplementation needed between MM7 and Dolciani? Thank you! James