This is block #25 in the Civil War block-of-the-week series offered by Barbara Brackman.  It is called Calico Puzzle.  Go to Barbara’s blog to get the pattern and to see the story and pictures related to this block.

http://civilwarquilts.blogspot.com/2011/06/25-calico-puzzle.html

This is an easy block but to achieve the proper measurement of 8-1/2 x 8-1/2 inches, it is necessary to sew the half-square triangles with scant 1/4 inch seams.  It is also necessary to trim around the four sides of the block after it is completed.  For new quilters, this is how I assembled the block.

  • A – I make my half-square triangles a little differently.  Cut 2 medium and 2 light squares 3-5/8 inches.  Draw or press a line diagonally on the light squares.  Place light squares on top of medium squares, right sides together.  Sew a scant 1/4 inch seam on each side of the drawn/pressed line.

  • Cut along this line to make a total of 4 half-square triangles.  Press toward medium fabric and trim tails.  Piece should measure 3-3/8 x 3-3/8 inches.

  • B – Cut 4 dark and 1 light squares 3-3/8 inches.
  • Lay pieces out on a mat in the proper order.

  • Using full 1/4-inch seams, join row 1, pressing seams to the left; row 2, pressing seams to the right; and row 3, pressing seams to the left.
  • Join the three rows together to make a square and press.  Piece will measure 9-1/8 x 9-1/8 inches.
  • I found the easiest way to trim the piece is to fold in half and press both by length and width.  Measure 4-1/4 inches from the fold and mark a line along all 4 sides.

  • Trim along the lines to make the block 8-1/2 x 8-1/2 inches.

See the previous blocks in this series in my category list on the right hand side of the page – Quilting – Civil War Quilt.