This &quot;teacher&quot; notes this method works at conferences, but this is where all the attendees want your product. What happens in the classroom where there are those that couldn&#x27;t care less about your product, you, or the subject you are trying to keep them engaged on? As another poster mentioned - she is hitting on some of Gagne&#x27;s points but if she were to include the others she would be at instruction which is...teaching. Thus I could use any other profession and say something like &quot;Engineering is teaching&quot; and the fact that I gather materials is somehow going to translate into why every teacher should also be an engineer.<p>The good&#x2F;best teachers are not just salespeople, but also engineers, chemists, historians, philosophers, lawyers, and all sorts of other professions wrapped into one person teaching about a subject that not any one of those single professions covers.