Constructing a log cabin quilt square--a video tutorial

These are all taken in one shot with no editing (as if you couldn't tell). But I hope they make sense. My goal was to explain a log cabin quilt and introduce a few basic quilt sewing technique as I would to a friend sitting in my sewing room. In this case my "friend" was a camera precariously attached to my floor lamp.  Anyway, have fun with the log cabinning!