I have 6 children- age 9, 8, 6, 4, 3, and 1. We are all over the place with curriculum. I love apologia for science. My oldest is using Teaching Textbooks for math, my others are using Math Mammoth and Singapore. For grammar and writing, we use FLL, all on different levels. My 6 year old uses AAs and AAR. We use SOTW for history, but am thinking about switching it for something that has bible with it. I think I'm going to look into MFW or something else for history, geography, etc. that has a biblical view. Anyway, I know how challenging it can be schooling children with so many littles running around. If you find something that works well with all age groups, I would love to hear it!