"W" Key is a presenters best friend
Got to say, I wholeheartedly agree. I've seen good trainers, bad trainers, and mediocre ones for the last 30 years. So I know the style that works - not just for me, but by observing, for the vast majority of the other students. (Yep, it was acetate slides before ppt, but you get the drift).
So, now I'm a trainer. Here's my take.
I give the students paper copies of my slides, notes format, with the notes part blank. I reckoned as I train round the world, it's more useful for the students to write in their own language.
Show a slide or two to introduce the point, hit the 'w' key (whitescreen) then get the students to 'animate' me on the whiteboard. I'm their inquisitor, advisor, friend and 'cursor'.
I also might show 10-20%. The rest is an aide memoir.
Consistently far better feedback since I've switched to doing that!
(Sadly, like most, our managers 'expect' us to produce reams of slides. One measure of whether we're working or not...so we do.)
-Andy, Telecomms. trainer. (Hence, YMMV)