I've done a couple of presentations to classes so far and I did another this week. The facilities I've got aren't amazing but I should probably use them better than I do.
The students seem to quite like short presentations as its different from me standing at the whiteboard doing examples. Problem I had this week was that the font size on the plots I used wasn't big enough and I didn't discover this until after I'd put it on the wall.
However, I'd learnt from last time (when the projector didn't work) and had handouts for everyone too. The plots came out fine on the handouts, just not when blown up.
Need to check beforehand.