Judith Gustafson just left an excellent comment on an earlier blog post. She let us know about a presentation at the Association of (AECT) Educational Communications and Technology conference in 2002.

Click here for the PPT presentation by Tony Betrus and Al Januszewski of the State University of New York at Potsdam that does a great job of describing what Edgar Dale meant to convey with his cone, AND shows numerous examples of how the cone has been used improperly with the numbers added.

Here is my original post on this.