5
which students take in information (Pruitt, 2005; Miller, 2001). What all of these
conceptions of learning styles express is the need to expand instruction beyond single
modes of instruction.
There are three primary modalities through which people take in information:
visual, auditory and tactile. Silverman (2006) relates these three modalities to how
students
process information, deriving three basic learning styles: visual-spatial, auditory-
sequential and tactile-kinesthetic. Visual-spatial learners take in new information through
visualization of the whole concept and think in holistic, often three-dimensional, images.
Auditory-sequential
learners, by contrast, think in words, processed auditorally, and
generally learn in a sequential, step-by-step process. Finally, tactile-kinesthetic learners
take in information through
physical touch and sensation, and they benefit from
demonstration or application more than from verbal explanations.
The benefits of video—where much of the content is conveyed visually—for
visually-oriented learners is immediately apparent (CPB, 1997; Denning, no date).
However, video also benefits auditory learners, with its inclusion of sound and speech,
and can provide demonstrations not otherwise possible in classrooms for tactile learners.
Dual-Channel Learning
In fact, all students, both with and without a
strongly dominant modality
preference, benefit from instruction that includes video. Marshall (2002) cites the
conclusions of Wiman and Mierhenry (1969), extending Dale’s “Cone of Experience,”
that: “people will generally remember:
10% of what they read
20% of what they hear
30% of what they see
50% of what they hear and see” (pp. 7-8).
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Video is a form of multimedia that conveys
information through two
simultaneous sensory channels: aural and visual. It often uses multiple presentation
modes, such as verbal and pictorial representations in the case of on-screen print and
closed-captioning (Mayer, 2001). This multiplicity means that video communicates the
same information to students through simultaneous learning modalities and can provide
students with “multiple entry points” (Gardner, 2006) into the content:
The richness of these forms of information [images, motion, sound, and, at times,
text]
benefits learners, by enabling them “…to learn through both verbal and
visual means, to view actual objects and realistic scenes, to see sequences in
motion, and to view perspectives that are difficult or impossible to observe in real
life” (Wetzel, 1994). …[M]ost researchers agree that “…when viewed together,
each source provides additional
complementary information,” thus increasing the
chances that comprehension will take place (Kozma, 1991).” (CPB, 2004, p.5)
Citing Wood (1995), Aiex (1999) notes that video can be used “to promote
awareness of the interrelationship between modes (picture, movement, sound, captions)”
(p. 2). Kozma (1991) found that the mix of spoken language, text, still images and
moving images in television and video results in higher learning
gains than media that
rely primarily on only one of these symbol systems. Wetzel et al.’s 1994 review of
research concluded that combining sound with either still or moving images resulted in
more learning than simply adding motion to still images (cited in CPB, 2004).
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