I received some blocks that are flannel, 6" squares. They have a 4" square sandwiched between them and are stitched with an X across them. So, I am sure that they are considered "stitch as you go". I have never done this before. I do not know how to join them. If I just make a seam, it will show on the back. Can anyone explain to me how you do this? Below is a picture. They have the same pattern on the backs.
I would appreciate any help or comments. Thank you.