Have you ever been to a lecture that was so interesting that you hadn't noticed that an hour had gone by? There are some very talented individuals who can engage students purely on their skill as on orator. I stand back and admire the skill of these people and their gift. However, as a visual learner I would find this hard to sustain for a long period.
With an aging population we find that there are many teachers who may retire in the next 5-10 years. With the fast pace of technology, how can older teachers and new teachers keep up with the changes when for many years the same methods have worked? This is a question I find myself often engaging in with teachers and I am always met with a variety of responses.