Divide the Long Triangles
- Cut four of the light 2-1/2" x 16" long rectangles in half once diagonally, taking care to orient the cuts in the same direction.
- Cut the remaining four long rectangles in half once diagonally, but making cuts along the opposite diagonal to produce long triangles that are mirror images of the set you cut in Step 1.
- Choose four like-triangles that are cut as shown in the upper left portion of the illustration above. Align a triangle with a block, right sides together and its 90-degree corner aligned with the top corner of a block as shown in the illustration above. The long tip of the triangle will extend past the opposite edge of the block.
- Sew together, beginning at the 90-degree corner. Stop sewing when you reach the block's midpoint.
- Working in a clockwise direction, add a second triangle to the block, matching 90-degree corners. The tail of the second triangle will extend past the wider edge of the first triangle. Press the seam allowance towards the long triangle.
- Moving clockwise again, add a third and fourth triangle. Press seam allowances towards the triangle after each addition.
- After sewing the last triangle, align the unsewn edge of the first triangle with the block again, extending it over the wide edge of the fourth triangle. Complete the seam, backstitching a few stitches over the original seam line and then continuing to the end of the triangle. Press seam allowance towards the triangle.
- Make another identical block.
- Use the same method to sew the remaining triangles to the two remaining blocks. This set of triangles are mirror images of the first, and are sewn to the block in a counter-clockwise direction.