Re: New dojo/new student
Rick Stickles Shihan said, "Always end on an easy technique so that students leave feeling successful."" kokyu doa, kosa dori ikkyo, morotedori kokyu ho etc.
I personally do like students to do much or any falling in their first class. Having them practice backfall is good but back roll and front roll can freak some people out.
I also would look at things like the new 6th kyu requirements at USAF and similar things from other federations. Since those are the basics it can't hurt to introduce several of those plus one or two soft fall techniques.
finally I would ask you to consider introducing weapons. Things like suri ashi and kaiten are instantly obvious with a bokken.
best of luck