Now I know that one could argue that it is your choice about whether you want to use this hour and 20 minutes to engage actively with the material at hand, or whether you would like to multitask. You’re not bothering anyone (one could argue) as you quietly do your email or check Facebook. Here’s the problem with that theory: From what we can tell, you are actually damaging the learning environment for others, even if you’re being quiet about it. A study published in 2013 found that not only did the multitasking student in a classroom do worse on a postclass test on the material, so did the peers who could see the computer. In other words, the off-task laptop use distracted not just the laptop user but also the group of students behind the laptop user. (And I get it, believe me. I was once in a lecture where the woman in front of me was shoe shopping, and I found myself thinking at one point, “No, not the pink ones!” I don’t remember all that much else about the lecture.)