I have actually bought, am going to be doing the core 1 this next year with my 1st and 3rd grader, along with the SOTW. It is a great way to teach History, Lit, and Science to more than one child. The material in core one is plenty hard for a 3rd grader, and yet not too overwhelming for a 1st grader, imo. Of course you would have to order Math , Language, etc.. to match each child's level. There is alot of reading outloud in the sonlight cores. Sometimes that fits a family, and sometimes not. Good luck on your homeschooling adventure! :001_smile: