1. Use a pencil to mark a diagonal line on wrong side of each solid pink 2-7⁄8" square.
2. Layer each marked solid pink square atop a pink dot 27-⁄8" square. Sew each pair together with two seams, stitching 1⁄4" on each side of drawn line (Diagram 1).
3. Cut pair apart on drawn line to make two triangle units. Press open each triangle unit, pressing seam away from solid pink, to make two pink triangle-squares. Each triangle-square should be 2-1⁄2" square including seam allowances. Repeat to make 16 pink triangle-squares total.
4. Using blue print and solid blue 2-7⁄8" squares, repeat Steps 1–3 to make 48 blue triangle-squares total.