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Copyright
© 1999 by Bonnie Skaalid
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Research
about animations or motion in instructional materials
states:
- "animation
(motion) can lead to positive learning effects if it is a
critical attribute of the concept(s) being
presented
- animation
(motion) can increase learning of a complex procedural
task
- motion
or action used primarily to enhance the realism of the
presentation does not appear to have a significant effect
on learning" [1,
p. 766]
According
to Nielsen [2],
appropriate uses for animation include:
- showing
continuity in transitions - "When something has two or
more states, then changes between states will be much
easier for users to understand if the transitions are
animated instead of being instantaneous - ie proving the
Pythagorean theorem by animating the movement of various
squares and triangles as they move around to demonstrate
that two areas are the same size"
- indicating
dimensionality in transitions - animated arrows pointing
left and right can indicate movement forward and back,
zooming boxes can indicate one screen was enlarged from
another
- illustrating
change over time - showing population change by fading
from one density map to the next over time
- multiplexing
the display - showing more than one piece of information
in the same location - ie, buttons which change color
when the mouse rolls over them, help labels which appear
when the cursor is on top, menus which pull down when you
hold the mouse down
- enriching
graphical representations - animated icons can give a
better understanding of the function of the icon - ie. an
eraser icon which erases pixels to explain its
function
Moving
images focus attention. A study by Reeves and Nass
[3]
using an EEG to measure brain waves showed that attention
increased every time motion appeared on the screen. Needless
to say, it is hard to concentrate on reading a message if
your brain is attending to the spinning logo or the cycling
advertisement at the top of the screen. Rieber states that
"designers...must resist incorporating special effects, like
animation when no rationale exists" (Rieber, 1990, p. 84, as
quoted in [1]).
[1] Anglin, G.,
Towers, R., & Levie, H. (1996). Visual message design
and learning: The role of static and dynamic illustrations.
In D.H. Jonassen (Ed.), Handbook of Research for
Educational Communications and Technology . New York:
Simon and Schuster Macmillan.
[2] Nielsen,
J. (Dec. 1995). Guidelines for multimedia on the
web. [Online]. Available: http://www.useit.com/alertbox/9512.html
[3] Reeves,
B. & Nass, C. (1996). The media equation: How
people treat computers, television, and new media like real
people and places. New York, NY: Cambridge University
Press.
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