I think The Nomadic Professor is affordable, especially for bring such a comprehensive, open-and-go approach to high school history! You can find a pricing overview at The Nomadic Professor. There are 2 levels of access: Standard and Premium  Standard access is if you are enrolling one student (with no need for grading, credit, or transcripts). Premium access is if you're a teacher, parent, or instructor hoping to oversee one or more students. With this option, you get complete with virtual classroom setup (the ability to track student progress, manage grades and assignments, and even add seats). Get more details and up-to-date prices () with this Pricing Overview.