I have actually done this -- and unsurprisingly, it is harder than it seems. You can get messed up in the details of trying to "teach" too much and get tripped up in the details of your work. I don't claim to have an answer, but here are a few suggestions:
- Teach your terminology early, and keep it simple.
- Have two or three clear stories, with obvious "problem solved" sections.
- Encourage your audience to interrupt you to clarify.