To supplement our studies, we viewed a short few videos on You Tube:
We're waiting for our workbooks to arrive, and sometimes it's like pulling teeth to get the end of the section questions answered so I made up my own guided notes page for my son in lieu of the questions and to keep in his binder as notes. I've provided a download link to the notes, of course they are most useful if you are using the Scott Foresman textbook (Unit 1, Chapter 1, Section 1: Migration to the Americas) but I also think they are pretty general that you could use them even if you aren't.