Last fall I taught a class with a peak enrollment of 84. We are required to document attendance where I teach so I therefore have to come up with some way to take roll each day. Yeah, like I am going to read out 84 names each time we meet (at least through the late-semester drop deadline). So I had a challenge with how I would take attendance in an efficient manner. I could have passed around a paper and asked them to sign in but I wanted to connect taking attendance to a learning activity.
