When I played this for previous lessons I would print one set of card backs, on separate paper print a set of the card fronts, paste a back to each front, cut out the individual cards, and repeat for each set. This was to make the cards sturdier and weightier, more similar to actual playing cards. It's a painstaking, time-consuming process (as would be anything involving a laminating machine), so this time around I may forgo all that and just print them front-and-back on one sheet of paper -- no pasting, no laminating -- and just see how it goes. I don't imagine the cards will make it through all ten of my classes, so I anticipate printing A LOT more.