Thursday, June 11, 2009
We've all sat through one of those
presentations where the animated slides are more interesting than the speaker.
Bold and brassy titles slide into view, tasty slices of pie chart fill the
screen one by one, and a hail of arrows spikes the points the lecturer hopes to
highlight.
But, are these custom animations and slide fades and
dissolves actually adding anything to the lecture, or do they have a dark side
that detracts from the message and impacts negatively on the message being
presented?
Microsoft PowerPoint has, over the last couple of decades,
become the tool of choice for creating instructional slideshows. Long gone for
most are the overhead projector with its fickle fan and its high-temperature and
temperamental bulb, the smudgy marker pen, and the transparent plastic sheet.
Instead, lecturers, speakers and anyone else with a visual message to
present with their talk uses PowerPoint and its ilk to present their digital
slides. According to the authors of a study in the International Journal of
Innovation and Learning published this month, many instructors use these options
regularly with the impression that such effects enhance student learning by
allowing concepts to be introduced incrementally.
Stephen Mahar of the
University of North Carolina Wilmington and colleagues have explored the impact
of custom animation in PowerPoint lectures and examined the idea that custom
animation may, in fact, negatively impact student learning.
To test
their hypothesis, the team recorded two versions of a PowerPoint lecture. The
presentations differed only in the presence of animation to incrementally
present information. They then showed students either the animated or
non-animated lecture and then tested the students recall and comprehension of
the lecture.
The team found a marked difference in average student
performance, with those seeing the non-animated lecture performing much better
in the tests than those who watched the animated lecture. Students were able to
recall details of the static graphics much better. Animated slides meant to
present information incrementally actually require greater concentration, which
makes it harder to remember content as well as reducing overall exposure time to
the "complete" slide, the researchers found.
Although students appear to
like the use of animations in lectures delivered using PowerPoint, there is now
strong evidence that animation is nothing more than an entertaining distraction.
The team points out that their study was applied only to the teaching of
new concepts. It is possible that teaching a technique might work more
effectively with animated, rather than static, slides. Follow-up work will
investigate that possibility.
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Inderscience Publishers
that's assuming that in both cases, the students are actually listening to the teachers. if you were presenting to an unruly class, i think the animated slides will be much better. =P
Thanks for sharring this piece of information! :-D It's gonna help a lot.