We used them for grades K – 3. It is not too much for a 2nd grader. We LOVE the D’Aulaire books, which are also used in SCM history guides. The BF guides tell you which pages to read and which b & w illustration from the D’Aulaire book to copy for the kids to color and put in their history notebook. Then they have a copywork sentence to write that goes with the picture. Occasionally there are Bible verses and character qualities to discuss. Many of the lessons we doubled up on, but that was our only history and copywork for the day. If you do one lesson per day, it is short enough to add in with SCM module 2, which is mostly Bible. We skipped some of the Thanksgiving books since we cover that topic yearly with the holiday and they spent a lot of time on that already. If you start in August, you should be at pilgrims & Squanto in November. Their lesson plans were updated recently, maybe a year ago. So if you buy used, it would likely be the older version. Alternatively, you could do your own thing and read the D’Auliare books in historical order at your own pace and do your own narrations without the BF guide. Many of the books are at the library or buy at Amazon, CBD, RR, Ebay, & homeschoolclassifieds.com