1. Use a pencil to mark a diagonal line on wrong sides of assorted cream solid, stripe, and print 12-7/8" squares; assorted cream solid, stripe, and print 6-7/8" squares; and cream polka dot 6-7/8" squares.
2. Layer each marked cream 12-7/8" square atop an unmarked assorted red solid, stripe, or print 12-7/8" square. Sew each pair together with two seams, stitching 1/4" on each side of drawn line (Diagram 1).
3. Cut a pair apart on drawn line to make two triangle units (Diagram 1). Open triangle units and press seams toward red fabrics to make two large triangle-squares. Each large triangle-square should be 12-1/2" square including seam allowances. Repeat to make 12 large triangle-squares total (you will use 11).
4. Using marked assorted cream 6-7/8" squares and unmarked assorted red 6-7/8" squares repeat steps 2 and 3 to make 50 small triangle-squares. Each small triangle square should be 6-1/2" square including seam allowances.