This part is where we come across one of the benefits of this method of paper piecing over traditional paper piecing. With regular paper piecing, you have to place the piece of fabric on the opposite side of where it is going end up, so it is kind of a guess as to the size of the piece of fabric you need, especially with something like triangles. This can be such a waste of fabric in the long run. With this method, the piece you are filling is folded back to the right spot, so you can hold your piece up to the light and line it up perfectly. This allows you to cut pieces that are close to the correct shape and waste less fabric.
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Place piece number two behind piece number one with right sides together. You can see where piece number two is folded in front, and the fabric itself is placed perfectly to fit it. We will be sewing along the folded edge of the freezer paper.
You can start sewing at the beginning of the fabric, and sew right along the edge of the folded edge of the freezer paper (do not sew through the freezer paper, just right next to it).
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This is where we have another benefit of this method over traditional paper piecing. You do not have to stop when you reach a line. Since we are not sewing through the freezer paper and are folding the freezer paper back, there is nothing in the way of our sewing. You start at the beginning of the two pieces and sew all the way to the ends of the fabric, you don't have to stop at the end of the freezer paper, just continue the straight line off the fabric.
Because you are going to the end of the fabric, you can actually chain piece these blocks, you can see here I went to the end of my first piece and then slid my second one under the needle behind it.
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This makes the blocks go much faster and is much easier than the "stopping at a certain line" method of traditional paper piecing.
Once your line is sewn, you want to trim for your quarter inch seam. Just line the quarter inch line of your ruler up on the seam (folded edge of the freezer paper) and trim to a quarter inch.
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Unfold the freezer paper and fold the fabric for piece number two back into place. Iron the piece to the freezer paper, making sure to iron only in spots number one and two.
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