The Metiri Group's report disputes the widely debated Cone of Experience theory, which says each of us learns 10 percent of what we read, 20 percent of what we hear, 30 percent of what we see, 50 percent of what we hear and see, 70 percent of what we say or write, and 90 percent of what we say as we do a thing. (The rampant misrepresentation of researcher Edgar Dale's valid model of classifying learning styles is discussed in this entry in the blog of educational consultant Will Thalheimer.) After an extensive search, the report's authors were unable to find any empirical evidence supporting this breakdown. Contrary to popular opinion, research shows that lessons in which students interact with material, rather than passively absorb it, are not always better.
