Assemble Nine-Patch Blocks
1. Referring to Diagram 5, sew together two red print 2x42" strips and a cream print 3-1/2x42" strip to make strip set A. Press seams toward red strips. Repeat to make a second strip set A. Cut A strip sets into a total of thirty-four 2"-wide A segments.
2. Aligning long edges, sew together two cream print 2x42" strips and a purple print 3-1/2x42" strip to make strip set B (Diagram 6). Press seams toward purple strip. Repeat to make a second strip set B. Cut B strip sets into seventeen 3-1/2"-wide B segments.
3. Join two A segments and a B segment to make a Nine-Patch unit (Diagram 7). Press seams toward A segments. The unit should be 6-1/2" square including seam allowances. Repeat to make 17 Nine-Patch units total.
4. Sew together four red triangle-squares, four side units, and a Nine-Patch unit in three rows (Diagram 8). Press seams toward side units. Join rows to make a Nine-Patch block. Press seams in one direction. The block should be 9-1/2" square including seam allowances. Repeat to make 17 Nine-Patch blocks total.