This take (part 1, part 2) by Josh Waitzkin on the drawbacks of multitasking students, inspired by a visit to a retiring professor whose lectures he had found "life changing," is interestingly nuanced:
Over the course of a riveting 75-minute discussion of the birth of Gandhian non-violent activism, I found myself becoming increasingly distressed as I watched students cruising Facebook, checking out the NY Times, editing photo collections, texting, reading People Magazine, shopping for jeans, dresses, sweaters, and shoes on Ebay, Urban Outfitters and J. Crew, reorganizing their social calendars, emailing on Gmail and AOL, playing solitaire, doing homework for other classes, chatting on AIM, and buying tickets on Expedia (I made a list because of my disbelief). From my perspective in the back of the room, while Dalton vividly described desperate Indian mothers throwing their children into a deep well to escape the barrage of bullets, I noticed that a girl in front of me was putting her credit card information into Urban Outfitters.com. She had finally found her shoes!
He goes on to tie our increasingly restrictive primary and secondary schools to the subsequent problems he sees with attention:
Too many primary, elementary, and high schoolers are being boxed into the mold of conformity required by big classes, competition for grades, tests with multiple-choice questions.
The first grader who leaps to his feet when he figures out the math problem is diagnosed as ADHD and medicated to sit quietly with the class. Young learners have immense pressure to perform, to get good grades, but no one is listening to the nuance of their minds. They feel suppressed, they are suppressed, and by the time students get to college, they have become disconnected from the love of learning. Then they are asked to read 1000 pages in a week and skimming is the only solution. Many of the students who actually were engaged in the Gandhi lecture, the ones who wanted to learn more than to shop, were taking notes on their computers in a frenzy, researching events online while Dalton described them, typing every last word of the lecture. But Dalton had already supplied them with a detailed course packet with all the relevant dates and facts. His classroom is an environment for reflection, introspection, and letting resonant themes sink into your being. Unfortunately, to these college students, the notion of delighting in the subtle ripples of learning is almost laughable. Who has the time?
This is well-trod territory, but I think a good perspective on it, particularly the critical stance toward the students who are engaged, but not really paying attention.