I don't see why you could not do exactly the same thing with MS Word, or even a properly exported PDF. And, the added benefit is that it is searchable and can

I don't see why you could not do exactly the same thing with MS Word, or even a properly exported PDF. And, the added benefit is that it is searchable and can be re-rendered in different formats. But even if sending obtuse oversized bitmaps to be handled on a tablet did happen to be the best solution, that is really not the point. Her class is not about optimizing itself. Her class is about educating students. Not just about science, but about what goes into collecting data, collaborating, and submitting it in an accessible format. I think that a high school graduate should be able to understand how to take some arbitrary files, bundle them together in a zip file, and email them to someone. I really don't think this is too much to ask of some aspiring pre-STEM students. And if she bent over backwards to use snapchat and accept assignments in the form of a bunch of screenshots, I think she would be doing them a disservice.