Sisters' Ten Modern BOM July Block: Hattie's Trick

Sisters Ten BOM 1
Here we are at July's block.  Summer's in full swing, vacations, cookouts, baseball and fun.  I've chosen another easy block for this month in the Sisters' Ten Modern Block of the Month Club.  I know we've all got lots going on, so I didn't want to choose anything too time consuming.  So if you liked June's block, you'll breeze through this one.    
July blog cover BOM
Cutting Instructions.

For 12" blocks.
  • Cut (3) 5 1/4" x 5 1/4" squares of Fabric A (background).
  • Cut (1) 5 1/4" x 5 1/4" squares of Fabric C.
  • Cut (1) 5 1/4" x 5 1/4" squares of Fabric D.
  • Cut (1) 5 1/4" x 5 1/4" squares of Fabric E.
  • Cut (2) 4 1/2" x 4 1/2" squares of Fabric A (background).
  • Cut (1) 4 1/2" x 4 1/2" squares of Fabric B (for center).  
fabric cuts July

For 9" blocks.
  • Cut (3) 4 1/4" x 4 1/4" squares of Fabric A (background).
  • Cut (1) 4 1/4" x 4 1/4" squares of Fabric C.
  • Cut (1) 4 1/4" x 4 1/4" squares of Fabric D.
  • Cut (1) 4 1/4" x 4 1/4" squares of Fabric E.
  • Cut (2) 3 1/2" x 3 1/2" squares of Fabric A (background).
  • Cut (1) 3 1/2" x 3 1/2" squares of Fabric B (for center).  
Piecing Instructions.
*Use a scant 1/4" on all seam allowances. See the Scant Rant series for details.

1.  Make 6 Half-Square Triangle (HST) units pairing the 3 Fabric A squares with Fabric C, D, and E respectively.  Use (1) Fabric A square and the (1) Fabric C square to make (2) total Half-Square Triangle units using the method in this tutorial.  Repeat the process, pairing the remaining 2 Fabric A squares with (1) Fabric D square and (1) Fabric E square.  Make 6 HST blocks total (2 of each color).  The HSTs should be trimmed down to:
                      12" blocks:  4 1/2" (unfinished size).
                        9" blocks:  3 1/2" (unfinished size).

2.  Layout the Half-Square Triangle Units, remaining Fabric A squares and Fabric B square as shown below.
 
 photo Julyhattietrick1_zps4d68dcac.png

3.  Sew each of the three rows together, alternating the direction the seams are pressed.
 photo Julyhattietrick2_zpsd625202c.png


4.   Sew the rows together and you're done!

 photo Julyhattietrick3_zpsd4c2b17e.png
5.   Make (2) blocks.  They may be identical blocks or made from differing fabrics for a scrappier look.  

two july blocks sisters' ten bom  
Fabric is Alison Glass for Andover, Lucky Penny with background Quilter's Linen in Straw by Robert Kaufman.