Um…has she tried youtube? I’m serious. If Matlab is the problem, there are hundreds of tutorials available on youtube. (I searched matlab for beginners.) Maybe watching a few to get some background will help. One has 100 videos starting with the basics and going from there. https://www.youtube.com/playlist?list=PLG4WfqoDFRvkPdujlErCsGjjvKTfOyF0A I don’t know if it’s the best “on offer” but it does seem to cover a lot of topics.
She should “sample” a few different tutorials until she finds one that works for her. There are comments after them, so skim through and find a few that others have found helpful.
I’d suggest she set aside at least one full day and begin at the beginning. At the very least it might help her understand which concepts she “doesn’ t get” so she can ask more intelligent questions.