You'll be happy to know that I use chalk and blackboards to lecture to my third-year biochemistry class on heart disease and free radical biochemistry, and I use white boards and pens to teach second-year students the biochemical physiology of digestion. I do give them handouts of the more complex diagrams, which are also displayed on the overhead projector. I could use PowerPoint, but I have found by experience it is not the best way to get the information to the students.
Steven Gieseg, PhD
Department of Zoology
University of Canterbury
Private Bag 4800
Christchurch, New Zealand