Save the instructional web pages as web archives;_
F)ile S)ave As, then change the
"Save as Type" field to Web Achive, *.mht
You might like to create a different directory for each week, as next week the saved file name will be the same as this week's e.g "Variation of the Week Man's Part"
Videos will have to be saved via the viewer you use, I find the latest Real player has a save option.
Enjoy your dancing.