PART 3 - THE CHOICE OF SISTERS
Step 1: Using a pencil and ruler, draw a line from the top left corner to the bottom right corner on the wrong side of all light 2-7/8" squares, as shown below:
Step 2: Layer a light 2-7/8" square on a dark 2-7/8" square, right sides together. Sew a 1/4" seam on EACH side of the line. Cut apart on the line and press seam toward the dark fabric. Trim points. Repeat thirty-one more times for a total of sixty-four light/dark half-square triangles.
Step 3: Arrange two dark 2-1/2" squares, two light/dark half-square triangles, and one medium 2-1/2" square as shown below. Using a scant 1/4" seam, sew together to form a row. Press seams away from the half-square triangles. Repeat for a total of sixteen rows.
Step 4: Arrange two light/dark half-square triangles and one medium 2-1/2" square as shown below. Using a scant 1/4" seam, sew together to form a row. Press seams toward the medium square. Repeat for a total of sixteen rows.
Step 5: Sew a Step 4 row to the left and right sides of a nine-patch block (from Part 2), as shown below. Press seams toward the nine-patch block. Repeat for a total of 8.
Step 6: Sew a Step 3 row to the top and bottom of the block, as shown below. Press seams toward the nine-patch. Repeat for a total of 8 Sister's Choice blocks.
You now have eight Sister's Choice blocks. Blocks should measure 10-1/2" unfinished. They will measure 10" when sewn into the quilt.