makeup is a little tough because somebody has to buy all those materials so it usually works better as a stand alone class, that said...
lighting: pick a subject, hit different angles with 1 light or 2, replicate a sunrise, do "horror" lighting,
etc to learn highlight and shadow.
-Pick a scene from a script and do a paper design for it, and if possible then mount the design for real. IE pick the ghost on the wall scene from Hamlet and go through the script thinking about specials you would need and different effects and then draft a
plot for it.
scenic: pick a show, design a set, do front elevations, paint elevations,
build a model of your set.
painting: teach basic brick, wood and marble techniques. A lot of books
cover the basics of at least doing wood and brick for the
stage.
Props: pick a prop from a
play/musical/tv show/movie
etc and make it. paper
props in photoshop, or other replicas of items from movies I saw someone make the harry potter snitch before, things like that.
costumes: again may be a little difficult unless you have someone who already knows how to make clothes to teach you. I had a costume construction course once and made a rehearsal
skirt. Other than that, samples are easy, learning different ways to attach buttons, hem clothes, attach zippers or snaps. On the paperwork side you could design a show again and do renderings of the costumes you'd want.
Sound: all the basics, hooking up mic/amp/board/
speaker etc, all the steps to making it go and in the right order, teaching how to do a
sound check, different types of mics.
on this type of course the sky is really the limit, take what you've got access to and figure out how it can be used.
there was a scenery/
props and painting class that I took ages ago that combined building your own box, each student had to make a 6"x6" box (or whatever dimensions) cutting and assembling it themselves. then they made a prop, and had to do the brick wood and marble painting on a 2'x4' hard
flat. that's a nice jumping off
point. or any combination of three. if you don't have access to lots of extra paint, do sound in there or lights, mix and match till you are content