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August 2015 Archives

This is a cross-post from Talking Teaching.

Image from linguasynaptica

I guess it depends on what they’re using their laptops for.

Most days when I come in at the back of the lecture room & walk down to the front, I’ll see a lot of laptops open & in use. Quite a few students will actually have the (incomplete1) powerpoint for the day’s class open on their screens, but quite a few others are on Facebook (or some arcane form of social media that I haven’t caught up with yet) or just surfing. So when a friend shared an article titled Professors push back against laptops in the lecture hall, I read it with interest & also shared it with one of our big FB student pages for some consumer opinion. (There’s some interesting commentary here, too.)

One of the major reasons many oppose laptop use is their potential to distract students from what’s going on in the classroom, and judging from the ‘consumer feedback’ I received, that can be quite a big issue:

I don’t begrudge others using them except when they are watching videos or checking facebook etc during lectures. That’s very distracting.

It’s only annoying and distracting when people take their laptops and play games or scroll Facebook. Which a lot of people do…

Somewhat surprisingly, that distractive effect extends to students putting their devices to what many of us would regard as ‘legitimate’ use ie searching for information directly related to the class. And I’ll admit, sometimes I’ll ask a student to look something up, especially if I think they’re doing something other than class-related work! For example, this brief report cites a study showing that

students who spent a greater proportion of time seeking course-related sites recalled significantly less than those who were more often browsing sites unrelated to the course (r = -.516, p. < .02).

And worse:

the more students used their laptops, the lower their class performance (β = -.179, t(115) = -2.286, p = .024), the less attention they paid to lectures (p = .049), the less clear lectures seemed to them (p = .049), and the less they felt they understood the course material (p = .024)

Yikes! This really piqued my interest, & led me to a 2014 paper by Mueller & Oppenheimer, which has the wonderful title, The Pen is Mightier than the Keyboard. Here’s the abstract:

Taking notes on laptops rather than in longhand is increasingly common. Many researchers have suggested that laptop note taking is less effective than longhand note taking for learning. Prior studies have primarily focused on students’ capacity for multitasking and distraction when using laptops. The present research suggests that even when laptops are used solely to take notes, they may still be impairing learning because their use results in shallower processing. In three studies, we found that students who took notes on laptops performed worse on conceptual questions than students who took notes longhand. We show that whereas taking more notes can be beneficial, laptop note takers’ tendency to transcribe lectures verbatim rather than processing information and reframing it in their own words is detrimental to learning.

I’ve certainly observed that many students struggle with long-hand note-taking, to the extent that I’ll get the occasional complaint that “she moves on to the next slide before I’ve copied it all down” in my teaching appraisals. (I do explain that they shouldn’t be ‘copying it all down’…2) And I type much faster than I write, so I can sympathise with students who want to use their laptops for note-taking in class. So did some of my students, commenting that

I actually find typing notes better for me, because my typing speed is so much faster than my writing speed.


I would hate it if we were not allowed laptops in lectures anymore! I’d miss half the notes and then have to go home and panopto lectures (or die if they weren’t panoptoed) which just takes up time that i could use studying all my notes properly.

Mueller & Oppenheimer’s paper has really got me thinking. They point out that there is a considerable body of evidence around the efficacy of note-taking, commenting that even without the distraction effect,

laptop use might impair performance by affecting the manner and quality of in-class note taking.

This could have that negative impact on learning by two routes: ‘encoding’, and ‘external storage’. ‘Encoding’ is valuable because – ideally! – students process information as they make their notes, and doing this enhances both their learning & their ability to retain information. ‘External storage’ refers to the ability to review and learn from notes at some later point, including notes taken by others: indeed, we employ note-takers to do this for students who are unable (for a variety of reasons) to take notes themselves.

An important question here is, what are students actually doing when they take those in-class notes? Are they actively summarising what’s been discussed eg via drawing a concept map, or writing a paraphrase? Or are they simply copying, word for word, every single thing I say & show in class?3 While some could argue, “but it doesn’t matter ‘cos I’ll write a summary later”, Mueller & Oppenheimer observe that

verbatim note taking predicts poorer performance than nonverbatim note taking, especially on integrative and conceptual items.

This underlies their suggestion that while laptops allow more rapid note-taking, if those notes are verbatim, then learning and understanding may actually suffer. In fact, they observe that

One might think that the detriments to encoding would be partially offset by the fact that verbatim transcription would leave a more complete record for external storage, which would allow for better studying from those notes. However, we found the opposite—even when allowed to review notes after a week’s delay, participants who had taken notes with laptops performed worse on tests of both factual content and conceptual understanding, relative to participants who had taken notes longhand.

So where do we go from here? I must admit to being a tad flummoxed at the moment – with the need to offer more flexible learning opportunities and  the current trend to ‘paperless offices’, we’re moving into a more highly digitised world and those laptops aren’t going to go away any time soon. How, then, to overcome the apparent negative effects they may have on student learning? If part of the problem lies with the ability to take appropriate notes, do we need to somehow teach this skill to all our incoming first-years?


1 I mean, why would I give them the whole lot up front (including the answers to my in-class quizzes)? This way there are always some 'unknowns' :)

2 no, seriously! What I’d much prefer is that they read through the material I provide ahead of class, identify the bits where they have no idea what I’m talking about, & then that’s where they should focus any note-taking during class.

3 and if they are taking such fulsome notes – how much attention is being paid to everything else that’s going on in class: the questions, discussion, extra explanations?


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OK, so I'm back (from a lovely long overseas trip). And I had thought to write something 'light' to ease myself back into blogging, but then I see that scientist and science communicator, Kevin Folta, is currently experiencing some dreadful personal attacks via social media for his stance on genetic modification of crops. You'll find Kevin's take on this here, and examples of what he's facing on sites such as this Facebook page owned by GMO Free USA.

This isn't about the man's science. This is simply a series of extremely nasty ad hominem attacks, which tends to suggest that his opponents can't find any valid critiques of the actual scientific research that Dr Folta carries out. And which in turn leads me to paraphrase the words of the late Margaret Thatcher

I always cheer up immensely if an attack is particularly wounding because I think, well, if they attack one personally, it means they have not a single [scientific] argument left.

Unfortunately the end result may well be to silence the voices of scientists working in any field that attracts controversy1 - although to some degree scientists are pushing back, as evidenced by the following excerpt from a 2010 letter to the journal Science:

We also call for an end to McCarthy- like threats of criminal prosecution against our colleagues based on innuendo and guilt by association, the harassment of scientists by politicians seeking distractions to avoid taking action, and the outright lies being spread about them.

Hang in there, Dr Folta!


1 For those with a spare half-hour, there's an interesting video on the subject here.

And while I'm at it - could the media PLEASE stop using those photos of syringes stuck into pieces of fruit, to illustrate stories on GM and GMOs? They are just wrong in so many ways!

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Recent Comments

  • herr doktor bimler: Please go on, Sirius Lunacy. read more
  • Alison Campbell: We have significant areas of DNA homologies with fruit flies, read more
  • Sirius Lunacy: 5 hundred 28 hertz vibrations Pumped into water distillations Clears read more
  • herr doktor bimler: And people will pay for the privilege of being hoodwinked read more
  • Ted Herrlich: And people will pay for the privilege of being hoodwinked. read more
  • Chris Mannering: Problem was because you couldn't/didn't take the idea seriously to read more
  • Alison Campbell: Only if one assumes that students are stupid & professors read more
  • herr doktor bimler: does powerpoint make students stupid and professors boring? If the read more
  • Alison Campbell: Quite so. read more
  • herr doktor bimler: Prokaryotes have a single, circular chromosome I'm not clear on read more