I would have her work with some hand sewing, too.
So many people will toss a garment if it needs a button or there is a small break in the seam line.
A square hotpad with cotton towel or cotton batting as filler could be made envelope style and she would learn to pivot at the corners and slip stitch the little opening closed. Cross hatching the hotpad after turning right side out gives additional practice of sewing a straight line.
Using a sample of two fabrics sewn together to create a seam line, create some opportunities: running stitch or backstitch to close a broken seamline. You could use the opportunity to look at one or two of her garments and discuss how she can shop for garments and rescue clothing that needs a little repair.
Last, but not least, she needs to know how to sew on both a shank and shankless button. Perhaps decorate a sweatshirt or small tote and sew on some buttons as decoration. I used to use 1/2inch ribbon bows and little heart shaped shankless buttons to decorate a child's shirt or sweatshirt as a gift. (Buttons and bows theme - can use variety of colored ribbons.)
She could make a small fabric case in which to keep her package of pins, package of needles, and small scissors (I used child's scissors purchased for $1. school supply.), tape measure, five or six inch ruler. If you have the patience she could even put a zipper in the case without using right side top stitching.
I can't wait to have my DGDs visit so we can do some sewing. One of their projects will be a pillowcase. I loved teaching youngsters when I was first out of college because they were like sponges soaking up all the info and willing to try just about anything. If it's fun, it's a cinch to complete!
By the way, we don't always have machines available, so I stressed the hand techniques. Thanks for reading my book:-)