[atlas] Intro presentation to RIPE ATLAS?

I have been invited to a large CS dept in a university to give a 40 minute intro into what is RIPE ATLAS, how does it work, how do you get credits, how many probes are there, what is an anchor, where are they located, how does the GUI work, what type of measurements can one do, etc.  Very very introductory - just to whet their appetite.  A basic intro to RIPE ATLAS. So I looked in: https://atlas.ripe.net/resources/training-and-materials/ and didn't find anything (PS the webinar link is broken). I am sure there must be some PPT/PDF presentation out there for this. Pointers? Thanks, Hank