This first link starts out confusing but finishes up pretty good as everyone brainstormed together and helped each other visualize.
http://www.quiltingboard.com/tutoria...o-t232261.html
I like this approach. One does have to go further into the tute, to the attachment of the second row to the third, for a good pic to visualize. Her blocks are bigger than what I usually work, so maybe not as cumbersome. Also, I suspect she left the whole thing unrolled for tute purposes but would roll so only dealing with current row.
http://www.candiedfabrics.com/2013/0...ing-as-you-go/