Good luck on your presentation.

It seems like a better idea to introduce the ideas of rationality and then to introduce LessWrong afterward. I also notice that LessWrong is mentioned as an afterthought in some presentations that I've seen, and that also seems suboptimal. So, I like the idea of LessWrong getting its due in a presentation but I also think that the thrust of the presentation should be about rationality itself.

Also, if you're talking about the Twelve Virtues of Rationality, I've seen people say that they're difficult to understand for people who haven't been introduced to many other LessWrong ideas, and that sometimes they seem cultish. Probably best to stick to the psychology.

But I like your 'concrete goals'.