"Make notes about the lecture. When you complete the class it is a good idea to immediately make some notes about your observations of how the lecture went. These notes should be brief and to the point concerning successes and rough sections. Make these notes while the lecture is fresh in your mind. When you prepare to give this lecture again these notes will serve to jog your memory about points you want to make and improvements that you can implement."
I think reflecting over my class is a good way to improve my classroom presentation.