I'll be back to school on Tuesday, teaching another Python class. I'm about to throw together a web based worksheet for use in class (each student will pull it up in a browser). I'll be recycling a lot of familiar material. Just thought I'd brainstorm out loud about the contents, then whip it together, then come back here and share the URL. I want to review some of what we've done so far, include a lot of links, preview some of the content ahead. Topics: Google Earth, Celestia and Stellarium for orientation (hello world) Latitude / Longitude XML Python: shell mode primitive objects vs. collections Collections: list dictionary string tuple Expressions: list comprehensions Functions: getting started with sequences: triangular, tetrahedral numbers etc. Generators: same ground, different capabilities generator expressions ... That should be enough to get me going. I'll be back soon with that URL. It'll be a work in progress and I'll be open to feedback (positive, negative, neutral, indifferent). Kirby