Piecing the block
Step 1. On wrong side of ivory fabric, draw diagonal line with
the marking tool of your choice. Sew 1/4" seam on each side of
marked line; cut apart on marked line. Press open to make pieced squares
(Diagram I). Make 20.
Using Diagrams II as a guide, make one pieced-square center
Step 3. Referring to Assembly Diagram,
sew units together to make block.