A nice simple block for us to recover from last week's tougher one. With this block, the block diagram and block picture in the book are different. The blocks with the three bars (rail fence?) are rotated. After some playing with things, I decided to go with the block diagram. I just liked the way it looked better with my fabric choices.
Here is everything laid out and ready to go. That stack in the middle is the square-in-a-square.
Here things are with the building blocks assembled. Ready to go together as our old friend the 9-patch.