Start with 2 squares the same size. Place them right sides together.
Stitch around the entire outside using a 1/4" seam. I don't usually use black thread on white...but you couldn't see the white thread!
Next, cut diagonally from corner to corner.
This will give you 4 HST (half square triangles). Press seams. Trim the little ears off!
Arrange your blocks into a lovely little Chevron.
With right sides together sew the two top pieces together using a 1/4" seam. Repeat with the two bottom pieces. Press seams. I like to press one seam to the left and one to the right when making HST's. That way when I sew the top and bottom together, the center seams lock together.
Lastly, sew the top to the bottom piece, matching the center seams. Press seam.
And there you have it! One quick set of four HST's!
A couple notes:
I used 8" squares starting out.
After cutting diagonally, I ended up with 4 - 5 1/4" HST's
The finished Chevron is 10" square