Well, we did it! Turns out it was far easier than I was imagining and she appears to have a knack for sewing!
I used masking taped to hold the pieces of fabric together, eliminating the need for pins AND giving a guide for the pressure foot.
For this first project, I wanted an easy, quick success. I remember when I learned, it was SO boring learning the proper pinning, cutting, blah, blah, blah. I just wanted to make something. Our next project can be one where she does more of the prep work.