Edgar Dale was a US educationist and professor of educations at Ohio State University. In 1946 he developed his most famous model, the cone of learning.Since then it has been quoted frequently, far and wide as the definitive evidence for how we retain information when delivered in various styles and mediums and has informed how to design training courses in specific ways.
This is unfortunate, because the figures we associate with the model are meaningless. In this post, Paul explains why and encourages to be careful when sharing ‘facts’ with others.
