1. Use a pencil to mark a diagonal line on wrong side of each solid white 4" square.
2. Align a marked solid white square with one end of a solid aqua 4×7-1⁄2" rectangle (Diagram 1; note direction of drawn line). Sew on drawn line, then trim excess, leaving a 1⁄4" seam allowance. Press open attached triangle, pressing seam toward triangle. In same manner, add a marked solid white square to opposite end of rectangle (Diagram 1; again note direction of drawn line). Stitch, trim, and press as before to make a Flying Geese unit. The unit should be 7-1⁄2×4" including seam allowances. Repeat to make four matching Flying Geese units total.
3. Using remaining solid aqua, assorted aqua print, assorted red print, solid gray, light aqua print, and red-and-white dot 4×7-1⁄2" rectangles, repeat Step 2 to make 96 Flying Geese units total (two sets of four matching units from each fabric).
4. For one Dutchmen’s Puzzle block, gather two sets of four Flying Geese units.
5. Sew together one Flying Geese unit from each set to make a Flying Geese pair (Diagram 2). Press seam in one direction. The pair should be 7-1⁄2" square including seam allowances. Repeat to make four matching Flying Geese pairs total.
6. Referring to Diagram 3, sew together Flying Geese pairs in pairs. Press seams in opposite directions. Join pairs to make a Dutchmen’s Puzzle block. Press seam in one direction. The block should be 14-1⁄2" square including seam allowances.
7. Repeat steps 4–6 to make 12 Dutchmen’s Puzzle blocks total.