Are rich media better than single media in online learning?

Tony Bates, Engineering Letters, Jan 02, 2015
Commentary by Stephen Downes
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Tony Bates suggests, "In general, it is usually a useful guideline always to look for the simplest medium first then only opt for a more complex or richer medium if the simple medium can’t deliver the learning goals as adequately." One reason for this is "there may be too many distractions in a rich medium for students to grasp the essential point of the teaching." But if what Daniel Lemire says below is true, then this is false. And it's false, I think, because the application of 'cognitive load theory' to learning is mistaken. And it is mistaken because it takes an atomistic view of learning, rather than an interconnected or network view of learning.

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