I make all my students type in many assignments as well. I don't use images, though, just classroom management techniques since I have them in the room with me

I make all my students type in many assignments as well. I don't use images, though, just classroom management techniques since I have them in the room with me and I find students have less incentive to "cheat" when they know what they're doing. Shoot me an email; would be happy to discuss.