Where can I read reviews of your curriculum? Notgrass History has tens of thousands of happy customers across the United States and around the world. New customers often come to us because of a referral from a friend. Ratings from Customers You ... Ordering Parent Support
What changed in the 5th edition of Exploring America? In honor of the 250th anniversary of the Declaration of Independence, we are releasing the 5th edition of Exploring America in 2026 . This is a major update with a new layout and new content. We modif... High School
What are the differences between various editions of Notgrass curriculum? We update Notgrass History curriculum from time to time, including making minor revisions and releasing major new editions. If you purchase a used copy of a previous edition, it is still a great curri... Other Parent Support