I love this collection. I once bought a book that asked questions that it didn't teach but yet they expected you to know rhe answer. This is the exact oposite. N addition to that it teaches important information in an easy way for anyone to understand. I give it an A+ since it also teaches some of the bible and how it relates to history and the world.
Unfortunately this curriculum has left us looking for something else. I kept thinking, "The next unit will be better," but have been disappointed. It lacks life and a lot of their questions leave you wondering what they're looking for.