1. I post the slides as one-to-a-page pdfs. If you would like to print multiple slides on one sheet for printing, find the "pages per sheet" setting in the print dialog. 
  2. I try to post the slides at least 2 hours before class. 
  3. I will post the marked up versions of my slides after class. I am human, though, so I occasionally forget to save the markup before closing the file. Do not rely on these as a substitute for attending!