Step 1: Turn adult-sized dress inside out and lay a good-fitting dress/shirt of the child’s over the top. Line up the top of the shoulders and arms. Trace an outline. Sew and trim off the excess material from the underarm and bodice all the way down the sides of the dress. Here is a youtube tutorial of what I am talking about in step one if what I said doesn’t make sense.Step 2: Use a straight edge like a ruler to pull the fabric up and fold it over 1/2 inch or so depending on how large your shirt was to begin with. I had my daughter try this on two or three times during the process to make sure it would fit well. This step is important for a better fit around the neckline since we are going from it being an adult shirt (wider neckline) to a child neckline.Step 3: Flip the dress over to the back and do the same pleats on the back just like in step 2.