Fine Sewing Pins
In the example I am showing you, I will be stitching smaller units together to make a larger unit or piece of the block. This pattern in this example is my pattern - “Vintage Apron” I am going to use the pins to match the seams in the bow on the apron.
Pin through your seam, back to front and find the corresponding seam on the adjacent piece.
Pin through the front of the seam you are matching on that piece with your fabric right sides together.
At this point I change my stitch length to a larger stitch. Stitch the seam, stitching over the pin, carefully, making sure your machine needle does not hit the pin. Take the pin out and check that your seams match. If they do, proceed to stitch over the basting stitch.