My School have bought a Trust Portable Notebook Stand for me to use for my tablet in classes. This gives me a bit of additional height and a slope to work with, which should help a bit with the “bending right over the tablet” issue. (I don’t think that a view of the back of my head is particularly useful for the students or in my recordings.)
I could do with a bit more height, though, for the tablet. Today I tried using a cardboard box (!) but my laptop didn’t like the resulting vibrations when I was writing. I had lots of problems with the presentation, and didn’t know why. Fortunately an observant student pointed out to me (thanks!) that my tablet kept going into hard disk protection mode.
No more cardboard boxes for me! I could use a big heavy book or two … but more likely I will use some form of monitor riser or a similar stand for a bit of extra height, if we can get something suitable.