Above is a picture of the pattern. The littlest piece will be cut out of paper, the piece below that from the lining fabric, and the piece to the right out of the outer fabric. The long dashes represent the fold.

Cut out the pattern pieces.

Cut a rectangle out of the heavy paper bag and fold it in half.

Place the smallest pattern piece on the paper, with it's right hand dashed side lined up with the fold of the paper and trace it. Repeat this once  and cut out both pieces.

Iron the lining fabric and fold it in half once.

Pin the lining pattern piece on the fold and cut it out. Repeat this once so you have two lining pieces. As you can see in the picture above I wrote "lining" on the pattern piece so I wouldn't get confused.

Iron and fold the outer fabric and cut two of the outer pattern pieces as you did for the lining pieces.

You should have; 2 paper pieces, 2 lining pieces, and 2 outer fabric pieces.