After reading this
weeks’ material I’m convinced that effective instructional design depends on
sensitivity to the cognitive load which, depends on an understanding of how the
human mind works. There are many things
about the presentation of the instructional design that I was not aware of. As I
began reading Clark and Moreno & Mayer’s article I came to know how pictorial
and verbal material is associated with cognitive structures.
I think that a presentation
should be broken down into digestible ‘sub-sets’ alternating between a few
seconds of narration followed by a few seconds of corresponding animation. Moreno
& Mayer found in their experiment (2002) found that people with high-spatial
ability have to put less effort in holding and manipulating mental images whereas
low-spatial learners may not be benefited of simultaneous presentation. This may
require them to devote more time in cognitive processing to hold mental images.
Moreover, segmenting
helps in making meaningful subsets of the instructional material. I find when any
video/power point is presented with animation continuously, with no breaks
between segments; I can make sense from the first segment. But, the additional
processes of organizing and integration of information presented in next
becomes difficult because my mind is still processing the information presented
in the previous segment. Thus, a useful practice is to use the technique that can
be called weeding. Weeding reduces load and make the multimedia narration
as concise and coherent as possible.
This week gave me an insight on designing my course using multimedia such that it can foster learning.
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