The More I Know, The Less Certain I Am

I’ve recently had cause to re-examine Dale Edgar’s ‘Cone of Experience‘. Like that fabulous educator from iTeachEM, Rob Rogers (@EM_Educator), this concept seems intuitive and demonstrates nicely the benefit of learning via different formats. I use it in talks to explore different learning styles. Except it’s bunk. Dale never ascribed percentages to the retention rate […]

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