When you click on the link to the notes (e.g., Lecture 2) allow to open, then go to the "file" menu and select "edit in power point"

That will open the lecture in power point. You will then be able to print multiple slides on a single page. To do so select print and then options. You can then select the handout option and note how many slides you would like to appear on each page (e.g., 6 slides per page).  There is also a notes option, that provides space to write beside each slide. 

Hope that helps!
Best, Dr. V