One of the more interesting ideas I've come across was for teaching reading. Basically you present the text in editable form and let the student rearrange and rewrite and add their own thoughts "between the lines".

It really doesn't require any new software or particular teacher training, only that the text be made editable, which is very much not the default now.

I don't have a non-university link, but the article I remember is Bill Bernhardt, "Reading and writing between the lines: an interactive approach using computers", Journal of Reading March 1994. (on jstor as a pdf composed of noneditable bitmaps)