I agree with ck. As a new quilter I was thrilled to be able to actually
use a machine, never mind actually being able to thread it, lol! Despite having a 1/4" guide with a fence, I
still managed to veer off at the end of seams.
I would stick with patterns that would be a quite 'forgiving' until she calms down. After my technique improved I then became a
too critical of myself!
Four years on and lots of classes later, I'm now settled and comfortable.
I know, like me, you've retired from education. Resist the urge to make her 'do her best' and think of her as in need of learning support