For this ipad zipper pouch I added a yellow lining - by doing the same assembly as in the class, zipper and outer fabric (black&white) right sides together PLUS on top the yellow fabric, right sides together with outer fabric too. Repeat on both sides of the zipper.

And then to close, right sides together of outer fabric on one side, and right sides together of lining in the other side, like in the picture below, sew straight stitch like the blue line leaving an openin at one bottom to turn it inside out and topstitch opening :)