I haven’t talked a lot about clickers on this blog, mostly because there’s no easy way for me to try using them for a semester and because I’ve focused a lot of my free time on learning to teach math online.
My college has a set of clickers that can be checked out by faculty, but it’s always a guessing game (when you “check out” equipment) whether the previous user will remember to turn in the equipment before your class meeting time.
If it was affordable, I’d probably just purchase a full class set myself and then not have to worry about the costs to students (but that seems a little extreme at roughly $2000 for a class set).
In the meantime, Derek Bruff has two great posts on teaching Statistics using classroom response systems (or clickers), so I’m sending you there!
Check it out here (Part I and Part II).