There is no video for week 16, but a simple lesson plan can be found on my blog insidethelineslessons.com. You'll find this Rockwell under Cycle 3 Great Artists.
It's "Picasso" by Robin Langley Sommer. I pre-marked the pages I want to show my class, since many of his works aren't great options for discussing in class. Its just a book I happened to have at home. There is probably a good book on Picasso for children out there, but I haven't looked so I don't have any recommendations .