I love this square! Tiny and intricate.
Foundation pieced, of course!
Print or trace the block diagram onto foundation paper, number, and cut out as in the photo.
Foundation piece all the sections. Trim seam allowances to 1/4".
I thought I'd show you what the back of my sections looked like after I trimmed the seam allowances.
(As you may have noticed, at this point I started turning the outside strips the wrong way round in my layouts. DON'T DO THAT!)
Sew the three center sections together.
Add the triangles.
Sew the top and bottom strips on.
Finish with the side strips.
How cute is that?