Pinwheel Tutorial

Finished size: 42” x 42”
Fabric required:
2/3 yard light fabric
2/3 yard dark fabric

Cut:
2 squares dark, 22” x 22”
2 squares light, 22” x 22”

Make four half-square triangle blocks:

  1. On the wrong sides of both light squares, mark a diagonal line from one corner to the other. Place one light piece on top of a dark square with the line facing up and pin along the diagonal.
  2. Sew two seams ¼” from either side of the line. Cut down the center line to form 2 HST units. Trim to 21½” if needed.

Arrange units as shown above to form the final bloc.