You can find patterns for these blocks (some with coloring variations) at the following locations online:
- this video: http://video.about.com/quilting/Make-a-Double-Four-Patch-Quilt.htm
- This one shows you how to make the blocks using charm packs and how to arrange them into a quilt: http://crookedseams.blogspot.com/2011/01/double-diamond-4-patch-tutorial.html
First, I sewed together the eight squares in pairs. I'll bet you can guess what comes next.
Yep, next I paired up the pairs to make squares! And look, each square has four patches! A double four patch, except it does not make a block yet.
And then I sewed those together - and a block emerged!
You can see how you could make an attractive quilt using just Double Four Patch blocks!