By the way, I listened to a lecturer in today's workshop. The theme was how making a lecture interesting. The lecturer suggested some tips through his own presentation. I have learned a lot about this matter.
There are lots of books explaining how to perform an effective presentation. For example, Steve Jobs is well known as a genius presenter. "The Presentation Secrets of Steve Jobs" describes several methods Jobs loved to adopt in his presentation.
However, Jobs' presentation was established based on a presupposition. Listeners are expecting to see new amazing products. Thus, they are interested in the presentation in advance.
In contrast, listeners are often bored in many lectures, especially which are mandatory. In those cases, a presenter has to do some tricks to make the listeners curious to the lecture. Actually, he let us pay an attention to the lecturer using some quiz at the beginning.
At the same time, it is also important to identify the characteristics of the listeners in some settings. In general, there is a specific purpose in a lecture. However, we are sometimes requested to make a presentation without a concrete mission. Then, the lecturer is encouraged to comprehend the level of knowledge and interests of the listeners.
Nowadays, one-way lecture is deemed as an ineffective way to educate pupils. Group work and mutual education are more efficacious, because the pupils are forced to think during the session. Of course, they take much time and skills to prepare.
Finally, feedback is essential. Many lecturers gather a questionnaire form after a class, most of which seems not beneficial. When your mission is to change the behaviors of the listeners, you should observe the reactions continuously, instead of performing a questionnaire immediately after the class.