I am now completing the rest of Unit 2. The fabric sizes are as follows: Letter C is a 4 1/4 x 2 3/4 rectangle, Letter D is a 3 1/2 x 3 1/2 square for area 2 and Letter D for area 3 is 4 1/2 x 4 1/2 square.
I am sewing the pieces in order by sewing first on the line between area 1 and 2, then on the line between area 1 and 3 and finally on the line between areas 1 and 4. I trim the seam allowance after I sew each piece in place. This helps to line up the next piece of fabric. I also prefer to press each piece after sewing it on the paper to make sure that it is nice and smooth before I trim my seam allowances.
Here I sewed on the line between 1 and 2
Next I fold the pattern on the line between areas 1 and 3 and trim the seam allowance
Here I am now lining up my next piece of fabric with my seam allowance I just cut making sure that this piece is positioned to cover the full area
After adding that last piece of fabric I have now laid that flat and have folded the pattern on the line between area 1 and area 4 to trim the seam allowance and get rid of excess fabric. I will use this straight edge to line up my next fabric for area 4.
Now I am positioning my last fabric (right side down) on top of the 2 pieces of background fabric that is facing right side up. I make sure that I have a little over the right side of the pattern and the rest over the left so that when it is folded back after sewing it will cover my area 4 completely.
This is the completed unit 2 after I trimmed the seam allowance on all sides. It is ready to be put with unit 1.